Relevant bibliographies by topics / Cycads

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Cycads'

Author: Grafiati
Published: 4 June 2021
Last updated: 26 July 2025

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Journal articles on the topic "Cycads"

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Liu, Yang, Sibo Wang, Linzhou Li, et al. "The Cycas genome and the early evolution of seed plants." Nature Plants 8, no. 4 (2022): 389–401. http://dx.doi.org/10.1038/s41477-022-01129-7.

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AbstractCycads represent one of the most ancient lineages of living seed plants. Identifying genomic features uniquely shared by cycads and other extant seed plants, but not non-seed-producing plants, may shed light on the origin of key innovations, as well as the early diversification of seed plants. Here, we report the 10.5-Gb reference genome of Cycas panzhihuaensis, complemented by the transcriptomes of 339 cycad species. Nuclear and plastid phylogenomic analyses strongly suggest that cycads and Ginkgo form a clade sister to all other living gymnosperms, in contrast to mitochondrial data,
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Pecundo, Melissa H., Aimee Caye G. Chang, Tao Chen, Thomas Edison E. dela Cruz, Hai Ren, and Nan Li. "Full-Length 16S rRNA and ITS Gene Sequencing Revealed Rich Microbial Flora in Roots of Cycas spp. in China." Evolutionary Bioinformatics 17 (January 2021): 117693432198971. http://dx.doi.org/10.1177/1176934321989713.

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Cycads have developed a complex root system categorized either as normal or coralloid roots. Past literatures revealed that a great diversity of key microbes is associated with these roots. This recent study aims to comprehensively determine the diversity and community structure of bacteria and fungi associated with the roots of two Cycas spp. endemic to China, Cycas debaoensis Zhong & Chen and Cycas fairylakea D.Y. Wang using high-throughput amplicon sequencing of the full-length 16S rRNA (V1-V9 hypervariable) and short fragment ITS region. The total DNA from 12 root samples were extracte
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Felger, Richard. "The Cycads." Economic Botany 56, no. 4 (2002): 414. http://dx.doi.org/10.1663/0013-0001(2002)056[0414:tc]2.0.co;2.

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Hickey, R. James. "The Cycads." American Fern Journal 93, no. 1 (2003): 47. http://dx.doi.org/10.1640/0002-8444(2003)093[0047:r]2.0.co;2.

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Scarnecchia, David L., and Loran M. Whitelock. "The Cycads." Journal of Range Management 57, no. 3 (2004): 326. http://dx.doi.org/10.2307/4003805.

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Scarnecchia, David L. "The Cycads." Rangeland Ecology & Management 57, no. 3 (2004): 327. http://dx.doi.org/10.2111/1551-5028(2004)057[0327:br]2.0.co;2.

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Norswg, Knut J., Priscilla K. S. Fawcen, and Andrew P. Vovides. "Beetle pollination of two species of Zamia: evolutionary and ecological considerations." Journal of Palaeosciences 41 (December 31, 1992): 149–58. http://dx.doi.org/10.54991/jop.1992.1116.

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Two species of cycads in Florida are invariably pollinated by beetles. The native Florida Zamia pumila L. is pollinated by a snout weevil, Rhopalotria slossoni Schaeffer, and a clavicorn beetle, Pharaxonotha zamiae Blake. An introduced cycad, Z. furfuracea L. fil., is pollinated by the snout weevil, R. mollis Sharp, apparently introduced from Mexico along with its host. Observations and experiment show that zamias are dependent upon pollinating beetles for their reproduction, and, in turn, the pollinating insects are dependent upon the cycads for brood places, food and shelter. The two cycads
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GIORGI, JOSÉ ADRIANO, and NATALIA J. VANDENBERG. "Review of the lady beetle genus Phaenochilus Weise (Coleoptera: Coccinellidae: Chilocorini) with description of a new species from Thailand that preys on cycad aulacaspis scale, Aulacaspis yasumatsui Takagi (Hemiptera: Sternorrhyncha: Diaspididae)." Zootaxa 3478, no. 1 (2012): 239–55. http://dx.doi.org/10.11646/zootaxa.3478.1.24.

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Species of the genus Phaenochilus are reviewed, keyed, and illustrated, and an annotated checklist provided. A newspecies, Phaenochilus kashaya n. sp., is described from Thailand. This species feeds on an invasive pest of cycads, thecycad aulacaspis scale, Aulacaspis yasumatsui Takagi (Hemiptera: Sternorrhyncha: Diaspididae). The economic importance of cycads and cycad aulacaspis scale is discussed. A taxonomic history of Phaenochilus is provided.
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Hermsen, Elizabeth, Thomas N. Taylor, Edith L. Taylor, and Dennis W. Stevenson. "Cycads from the Triassic of Antarctica: Permineralized Cycad Leaves." International Journal of Plant Sciences 168, no. 7 (2007): 1099–112. http://dx.doi.org/10.1086/518840.

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Stevenson, Dennis W. M. "Cycads of Colombia." Botanical Review 70, no. 2 (2004): 194–234. http://dx.doi.org/10.1663/0006-8101(2004)070[0194:coc]2.0.co;2.

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Dissertations / Theses on the topic "Cycads"

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Retief, Kirsten. "Cycad forensics: tracing the origin of poached cycads using stable isotapes, trace element concentrations and radiocarbon dating techniques." Master's thesis, University of Cape Town, 2013. http://hdl.handle.net/11427/6602.

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In South Africa, the greatest threat to cycad populations is the illegal removal of wild plants for landscaping purposes and collector's gardens, resulting in declining populations that are already threatened with extinction. Radiocarbon dating in conjunction with stable isotopes and trace element concentrations could provide the essential evidence needed in court when prosecuting poachers and collectors. The aim of this study was to determine the feasibility of using radiocarbon dating, stable isotopes and trace element concentrations to identify specimens removed from the wild. To test this
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Malwane, Thembeka Sebenzile Desiree. "In vitro tissue culture: Towards conservation of threatened desiccation sensitive Encephalartos cycads seeds." Master's thesis, Faculty of Science, 2019. https://hdl.handle.net/11427/31805.

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Approximately 62% of the 355 cycad species in the world are classified as threatened with extinction. The African genus, Encephalartos, has a total of 65 species, approximately 70% of which are threatened. This status emphasizes the need to conserve these species; however, the recalcitrant nature of cycads seeds makes it difficult to conserve using conventional seed banking methods. Recalcitrant seeds have a short lifespan and cannot be dried or stored for prolonged periods as they become non-viable when they lose moisture. While studies on cryopreservation for conserving cycad germplasm and b
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Suinyuy, Terence Nkwanwir. "The role of cone volatiles and thermogenesis in the pollination of Encephalartos cycads with particular reference to E.villosus." Doctoral thesis, University of Cape Town, 2011. http://hdl.handle.net/11427/12020.

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Includes abstract.<br>Includes bibliographical references.<br>Pollination systems of cycads usually involve obligate mutualisms in which the cycad taxa depend on between one and three insect pollinators. Generally, the pollination periods of many cycad taxa are characterised by odour emissions in pollen shedding (male) and receptive (female) cones usually accompanied by heat production. The emission of cone odours and heat production coincide with periods of insect activity on the cones...
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Singh, Karishma. "Population dynamics of the Zuurberg Cycad and the predicted impact of climate change." Thesis, Nelson Mandela Metropolitan University, 2012. http://hdl.handle.net/10948/d1012857.

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Cycads first appeared about 300 million years ago and historical data indicates that they survived fluctuations of global temperature and carbon dioxide concentrations and reached peak abundance during periods where temperature and carbon dioxide concentrations were much higher than the present conditions as well as the predicted increased levels. With Africa being one of the most vulnerable regions to climate change and in the absence of an evaluation of predicted impacts of climate change on cycads, this study aims to contribute to our understanding of responses of Encephalartos longifolius
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Lopez-Gallego, Cristina. "Effects of habitat degradation on the evolutionary dynamics of populations in a rainforest cycad (Gymnospermae)." ScholarWorks@UNO, 2007. http://scholarworks.uno.edu/td/555.

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In addition to habitat loss and fragmentation, habitat degradation can have important consequences for biodiversity and population persistence, including effects on ecological and genetic processes beyond decreased demographic viability and the loss of genetic variation. Particularly interesting is the potential for evolutionary changes and adaptation to degraded habitats, that can affect population viability even in the short-term. Here, I explore how environmental changes after habitat degradation affect the evolutionary dynamics of populations of the rainforest cycad Zamia fairchildiana, sp
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Csabafi, Tamas Zoltan. "Business cycles, endogenous growth, and monetary cycles." Thesis, Cardiff University, 2015. http://orca.cf.ac.uk/88965/.

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This dissertation sets out to introduce a new calibration procedure building on Jermann (1998) and the iterative shock identification scheme of Benk et al. (2005) in Chapter 1. It incorporates the use of Simulated Annealing, a global optimization algorithm, into the Jermann (1998) calibration methodology that is applied to search for the combination of structural parameters within a bounded parameter space that yields the lowest distance between a vector of US data moments and its simulated moments counterpart in the frequency domain. It also extends the methodology of Jermann (1998) with the
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Ash, Patricia. "Dominating cycles, Hamilton cycles and cycles with many chords in 2-connected graphs." Thesis, Goldsmiths College (University of London), 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.490379.

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Wallestad, Kate. "Growing Cycles." VCU Scholars Compass, 2014. http://scholarscompass.vcu.edu/etd/3330.

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In my paintings and prints, I create to understand my experiences. I make layered, repetitive marks and gestures that consist of spherical masses, orbits, and cellular forms. The shapes represent aspects of reproduction and symbolize my thoughts and ideas about procreation. In making pieces, I employ a mathematical system that describes growth patterns found in nature. I use this system as a way of echoing natural structures, as well as a way of focusing my attention. I create multiple small pieces and present them in large, gridded formats. These pieces are abstracted narratives of my
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Champion, Olivier-David. "Cycles d'investissements et cycles électoraux dans les communes françaises." Montpellier 1, 1996. http://www.theses.fr/1996MON10052.

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Cette thèse a pour objectif la construction d'un modèle comportemental expliquant les différents faits stylisés observés dans la gestion des communes françaises. Cette construction s'articule autour d'une structure inter-temporelle à deux périodes considérées respectivement comme non électorale et électorale. La maximisation de la probabilité de vote s'effectue sous les contraintes légales de gestion auxquelles sont soumis les élus municipaux. La pratique du cycle électoral se caractérise alors par une forte poussée des investissements et de la pression fiscale à la première période puis d'un
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Brandsar, Jo. "Offshore Rankine Cycles." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for energi- og prosessteknikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-19069.

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The title of the thesis - &quot;Offshore Rankine Cycles&quot; - is very general and cover a large range of engineering fields, e.g. thermodynamic cycles (Rankine, ORC, Brayton, Kalina, etc.), mechanical equipment (gas/steam turbine, heat exchangers and additional equipment) and safety concerns (flammable and/or toxic fluids, high temperature and pressures), to name the most important.The thesis try to give a brief overview of all critical points and alternatives, concerning employment of a waste heat recovery machine on offshore facilities, although focus has been on three more specified cases
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Books on the topic "Cycads"

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1959-, Donaldson John S., and International Union for Conservation of Nature and Natural Resources., eds. Cycads. IUCN, 2003.

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Goode, Douglas. Cycads of Africa. Edited by Linscott Graham. D & E Cycads of Africa Publishers, 2001.

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John, Comrie-Greig, ed. Cycads of Africa. Struik Winchester, 1989.

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Pant, Divya Darshan. An introduction to gymnosperms, cycas, and cycadales. Birbal Sahni Institute of Palaeobotany, 2002.

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Krempin, J. L. Palms & cycads around the world. Horwitz Grahame, 1990.

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Norstog, Knut. The biology of the cycads. Comstock Pub. Associates, 1997.

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Grobbelaar, Nat. Cycads, with special reference to the southern African species. N. Grobbelaar, 2002.

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1951-, Hodel Donald R., ed. The palms and cycads of Thailand. Kampon Tansacha, Nong Nooch Tropical Garden, 1998.

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Read, Robert W. Bibliography of the living Cycads (annotated). Harold L. Lyon Arboretum, 1986.

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Panama) International Conference on Cycad Biology (8th 2008 Panama City. Proceedings of Cycad 2008: The 8th International Conference on Cycad Biology, 13-15 January 2008, Panama City, Panama. Edited by Stevenson, Dennis Wm. (Dennis William), 1942-, Osborne Roy, and Taylor Blake Alberto Sidney. New York Botanical Garden Press, 2012.

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Book chapters on the topic "Cycads"

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Webb, D. T., and R. Osborne. "Cycads." In Trees II. Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-61535-1_31.

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Oldfield, Sara. "Conservation of Cycads." In Pteridophytes and Gymnosperms. Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-662-02604-5_64.

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Behnke, H. Dietmar. "Cycads and Gnetophytes." In Sieve Elements. Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-74445-7_5.

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Goel, Anil K., and J. S. Khuraijam. "Cycads: An Overview." In Plant Biology and Biotechnology. Springer India, 2015. http://dx.doi.org/10.1007/978-81-322-2286-6_14.

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Lack, Andrew, and David Evans. "Cycads, Ginkgo and Gnetopsida." In Plant Biology, 2nd ed. Taylor & Francis, 2021. http://dx.doi.org/10.1201/9780203002902-92.

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Lindblad, Peter. "Cyanobacteria in Symbiosis with Cycads." In Microbiology Monographs. Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/7171_2008_118.

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Jäger, A. K., and J. van Staden. "Somatic embryogenesis in African cycads (Encephalartos)." In Somatic Embryogenesis in Woody Plants. Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-017-3032-7_19.

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Mitchell, J. D. "Cycads, Designer Drugs, Free Radicals and Neurodegenerative Disease." In Archives of Toxicology. Springer Berlin Heidelberg, 1992. http://dx.doi.org/10.1007/978-3-642-77260-3_17.

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Dhiman, Manjul, and Indra Rautela. "Biotechnological Approaches Towards Micropropagation and Conservation of Cycads and Ephedrales." In Sustainable Development and Biodiversity. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-09381-9_12.

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Anbarasu, Ilavarasu, Prakash Palanivel, Sivaramakrishnan Saravanakumar, and Muralitharan Gangatharan. "Collection and Processing of Microalgae from Coralloid Roots of Cycads." In Methods and Protocols in Food Science. Springer US, 2024. https://doi.org/10.1007/978-1-0716-4180-4_4.

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Conference papers on the topic "Cycads"

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Moretti, Aldo. "Cytotaxonomy of Cycads." In Symposium CYCAD 87. The New York Botanical Garden Press, 1990. http://dx.doi.org/10.21135/893273507.010.

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Osborne, Roy. "Micropropagation in Cycads." In Symposium CYCAD 87. The New York Botanical Garden Press, 1990. http://dx.doi.org/10.21135/893273507.006.

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Bonta, Mark A. "Ethnobotany of Honduran Cycads." In CYCAD 2005. The New York Botanical Garden Press, 2007. http://dx.doi.org/10.21135/893274900.009.

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Osborne, Roy, Michael A. Calonje, Ken D. Hill, Leonie Stanberg, and Dennis Wm Stevenson. "The World List of Cycads." In CYCAD 2008. The New York Botanical Garden Press, 2012. http://dx.doi.org/10.21135/893275150.029.

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Rousseau, Philip, Piet J. Vorster, Damon P. Little, and Michelle van der Bank. "DNA Barcoding Africa’s Endemic Cycads." In CYCAD 2011. The New York Botanical Garden Press, 2018. http://dx.doi.org/10.21135/893275389.020.

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Stevenson, Dennis Wm, Leonie Stanberg, and Michael A. Calonje. "The World List of Cycads." In CYCAD 2011. The New York Botanical Garden Press, 2018. http://dx.doi.org/10.21135/893275389.035.

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Stevenson, Dennis Wm, Roy Osborne, and John Hendricks. "A World List of Cycads." In Symposium CYCAD 87. The New York Botanical Garden Press, 1990. http://dx.doi.org/10.21135/893273507.022.

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Chemnick, Jeff. "Seed Dispersal Agents of Two Mexican Cycads." In CYCAD 2005. The New York Botanical Garden Press, 2007. http://dx.doi.org/10.21135/893274900.008.

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Salas-Morales, Silvia H., and Jeffrey Chemnick. "SERBO and the Cycads of Oaxaca, Mexico." In CYCAD 2008. The New York Botanical Garden Press, 2012. http://dx.doi.org/10.21135/893275150.004.

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Taylor Blake, Alberto S. "Notes on the Ethnobotany of Panamanian Cycads." In CYCAD 2008. The New York Botanical Garden Press, 2012. http://dx.doi.org/10.21135/893275150.012.

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Reports on the topic "Cycads"

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Jovanovic, Boyan, and Julien Prat. Reputation Cycles. National Bureau of Economic Research, 2016. http://dx.doi.org/10.3386/w22703.

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Jovanovic, Boyan. Asymmetric Cycles. National Bureau of Economic Research, 2004. http://dx.doi.org/10.3386/w10573.

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Kiyotaki, Nobuhiro, and John Moore. Credit Cycles. National Bureau of Economic Research, 1995. http://dx.doi.org/10.3386/w5083.

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Cecchetti, Stephen, and Anil Kashyap. International Cycles. National Bureau of Economic Research, 1995. http://dx.doi.org/10.3386/w5310.

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Evans, George, Seppo Honkapohja, and Paul Romer. Growth Cycles. National Bureau of Economic Research, 1996. http://dx.doi.org/10.3386/w5659.

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Asea, Patrick, and S. Brock Blomberg. Lending Cycles. National Bureau of Economic Research, 1997. http://dx.doi.org/10.3386/w5951.

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Rosen, Sherwin, Kevin Murphy, and Jose Scheinkman. Cattle Cycles. National Bureau of Economic Research, 1993. http://dx.doi.org/10.3386/w4403.

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Lindenlaub, Ilse, and Jan Eeckhout. Unemployment cycles. Institute for Fiscal Studies, 2015. http://dx.doi.org/10.1920/wp.ifs.2015.1526.

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Flynn, Joel, and Karthik Sastry. Attention Cycles. National Bureau of Economic Research, 2024. http://dx.doi.org/10.3386/w32553.

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Garrett, Thomas A., and Howard J. Wall. Personal-Bankruptcy Cycles. Federal Reserve Bank of St. Louis, 2010. http://dx.doi.org/10.20955/wp.2010.010.

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