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1

Probert, Rachel, Anna Bastian, Simon H. Elwen, Bridget S. James, and Tess Gridley. "Vocal correlates of arousal in bottlenose dolphins (Tursiops spp.) in human care." PLOS ONE 16, no. 9 (2021): e0250913. http://dx.doi.org/10.1371/journal.pone.0250913.

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Human-controlled regimes can entrain behavioural responses and may impact animal welfare. Therefore, understanding the influence of schedules on animal behaviour can be a valuable tool to improve welfare, however information on behaviour overnight and in the absence of husbandry staff remains rare. Bottlenose dolphins (Tursiops spp.) are highly social marine mammals and the most common cetacean found in captivity. They communicate using frequency modulated signature whistles, a whistle type that is individually distinctive and used as a contact call. We investigated the vocalisations of ten do
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2

Madsen, P. T., F. H. Jensen, D. Carder, and S. Ridgway. "Dolphin whistles: a functional misnomer revealed by heliox breathing." Biology Letters 8, no. 2 (2011): 211–13. http://dx.doi.org/10.1098/rsbl.2011.0701.

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Delphinids produce tonal whistles shaped by vocal learning for acoustic communication. Unlike terrestrial mammals, delphinid sound production is driven by pressurized air within a complex nasal system. It is unclear how fundamental whistle contours can be maintained across a large range of hydrostatic pressures and air sac volumes. Two opposing hypotheses propose that tonal sounds arise either from tissue vibrations or through actual whistle production from vortices stabilized by resonating nasal air volumes. Here, we use a trained bottlenose dolphin whistling in air and in heliox to test thes
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3

Logominova, I. V., A. V. Agafonov, and Gorbunov R. V. "Spatial-temporal dynamics of a local population of Black Sea Bottlenose dolphins (tursiops truncatus ponticus barabash, 1940): visual and acoustic methods of description." Океанология 59, no. 1 (2019): 108–15. http://dx.doi.org/10.31857/s0030-1574591108-115.

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This work is devoted to research of the Sudak – Novy Svet (Crimea) local population of Black Sea Bottlenose dolphins. Observations and acoustic records were carried out all the year round in 2014 and 2015. Along with visual identification of individuals, for the first time in our country the method of «acoustic identification» was applied (according to the made catalog of «signature whistles»). «Signature whistles» are defined as tonal signals having a frequency contour, unique for each animal, and dominating in its repertoire. In such aspect «signature whistle» can be considered as a peculiar
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4

Tyack, Peter. "Whistle repertoires of two bottlenosed dolphins, Tursiops truncatus: mimicry of signature whistles?" Behavioral Ecology and Sociobiology 18, no. 4 (1986): 251–57. http://dx.doi.org/10.1007/bf00300001.

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5

Tyack, P. L. "ANIMAL BEHAVIOR: Dolphins Whistle a Signature Tune." Science 289, no. 5483 (2000): 1310–11. http://dx.doi.org/10.1126/science.289.5483.1310.

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6

Noh, Geontae, Ji Young Chun, and Ik Rae Jeong. "Strongly Unforgeable Ring Signature Scheme from Lattices in the Standard Model." Journal of Applied Mathematics 2014 (2014): 1–12. http://dx.doi.org/10.1155/2014/371924.

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In a ring signature scheme, a user selects an arbitrary ring to be able to sign a message on behalf of the ring without revealing the signer’s identity. Whistle-blowers especially find this useful. To date, various ring signature schemes have been proposed, all considered to be secure as existentially unforgeable with respect to insider corruption; that is, an adversary who chooses ring-message pairs for which he requests signatures, corrupts honest users, and obtains their signing keys can not produce forgeries for new ring-message pairs. Lattice-based ring signature schemes offer lower compu
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7

Longden, Emma G., Simon H. Elwen, Barry McGovern, Bridget S. James, Clare B. Embling, and Tess Gridley. "Mark–recapture of individually distinctive calls—a case study with signature whistles of bottlenose dolphins (Tursiops truncatus)." Journal of Mammalogy 101, no. 5 (2020): 1289–301. http://dx.doi.org/10.1093/jmammal/gyaa081.

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Abstract Robust abundance estimates of wild animal populations are needed to inform management policies and are often obtained through mark–recapture (MR) studies. Visual methods are commonly used, which limits data collection to daylight hours and good weather conditions. Passive acoustic monitoring offers an alternative, particularly if acoustic cues are naturally produced and individually distinctive. Here we investigate the potential of using individually distinctive signature whistles in a MR framework and evaluate different components of study design. We analyzed signature whistles of co
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8

Janik, V. M., L. S. Sayigh, and R. S. Wells. "Signature whistle shape conveys identity information to bottlenose dolphins." Proceedings of the National Academy of Sciences 103, no. 21 (2006): 8293–97. http://dx.doi.org/10.1073/pnas.0509918103.

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9

Janik, V. M., Guido Dehnhardt, and Dietmar Todt. "Signature whistle variations in a bottlenosed dolphin, Tursiops truncatus." Behavioral Ecology and Sociobiology 35, no. 4 (1994): 243–48. http://dx.doi.org/10.1007/s002650050094.

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10

Janik, Vincent M., Dietmar Todt, and G. Dehnhardt. "Signature whistle variations in a bottlenosed dolphin, Tursiops truncatus." Behavioral Ecology and Sociobiology 35, no. 4 (1994): 243–48. http://dx.doi.org/10.1007/bf00170704.

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11

Janik, Vincent M., and Laela S. Sayigh. "Communication in bottlenose dolphins: 50 years of signature whistle research." Journal of Comparative Physiology A 199, no. 6 (2013): 479–89. http://dx.doi.org/10.1007/s00359-013-0817-7.

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12

Cook, Mandy L. H., Laela S. Sayigh, James E. Blum, and Randall S. Wells. "Signature–whistle production in undisturbed free–ranging bottlenose dolphins ( Tursiops truncatus )." Proceedings of the Royal Society of London. Series B: Biological Sciences 271, no. 1543 (2004): 1043–49. http://dx.doi.org/10.1098/rspb.2003.2610.

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13

King, Stephanie L., Heidi E. Harley, and Vincent M. Janik. "The role of signature whistle matching in bottlenose dolphins, Tursiops truncatus." Animal Behaviour 96 (October 2014): 79–86. http://dx.doi.org/10.1016/j.anbehav.2014.07.019.

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14

King, Stephanie L., Emily Guarino, Katy Donegan, Jane Hecksher, and Kelly Jaakkola. "Further insights into postpartum signature whistle use in bottlenose dolphins (Tursiops truncatus)." Marine Mammal Science 32, no. 4 (2016): 1458–69. http://dx.doi.org/10.1111/mms.12317.

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15

Parijs, Sofie M., and Peter J. Corkeron. "EVIDENCE FOR SIGNATURE WHISTLE PRODUCTION BY A PACIFIC HUMPBACK DOLPHIN, SOUSA CHINENSIS." Marine Mammal Science 17, no. 4 (2001): 944–49. http://dx.doi.org/10.1111/j.1748-7692.2001.tb01308.x.

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16

Hiley, Helen M., Sarah Perry, Steve Hartley, and Stephanie L. King. "What’s occurring? Ultrasonic signature whistle use in Welsh bottlenose dolphins (Tursiops truncatus)." Bioacoustics 26, no. 1 (2016): 25–35. http://dx.doi.org/10.1080/09524622.2016.1174885.

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17

McCowan, Brenda, and Diana Reiss. "Quantitative Comparison of Whistle Repertoires from Captive Adult Bottlenose Dolphins (Delphinidae, Tursiops truncatus): a Re-evaluation of the Signature Whistle Hypothesis." Ethology 100, no. 3 (2010): 194–209. http://dx.doi.org/10.1111/j.1439-0310.1995.tb00325.x.

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18

Sayigh, Laela S., Peter L. Tyack, Randall S. Wells, Michael D. Scott, and A. Blair Irvine. "Sex difference in signature whistle production of free-ranging bottlenose dolphins, Tursiops truncates." Behavioral Ecology and Sociobiology 36, no. 3 (1995): 171–77. http://dx.doi.org/10.1007/bf00177793.

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19

Watwood, Stephanie L., Edward C. G. Owen, Peter L. Tyack, and Randall S. Wells. "Signature whistle use by temporarily restrained and free-swimming bottlenose dolphins, Tursiops truncatus." Animal Behaviour 69, no. 6 (2005): 1373–86. http://dx.doi.org/10.1016/j.anbehav.2004.08.019.

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20

Sayigh, L. S., Peter L. Tyack, Randall S. Wells, Michael D. Scott, and A. Blair Irvine. "Sex difference in signature whistle production of free-ranging bottlenose dolphins, Tursiops truncatus." Behavioral Ecology and Sociobiology 36, no. 3 (1995): 171–77. http://dx.doi.org/10.1007/s002650050137.

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21

Harley, Heidi E. "Whistle discrimination and categorization by the Atlantic bottlenose dolphin (Tursiops truncatus): A review of the signature whistle framework and a perceptual test." Behavioural Processes 77, no. 2 (2008): 243–68. http://dx.doi.org/10.1016/j.beproc.2007.11.002.

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22

King, Stephanie L., Emily Guarino, Loriel Keaton, Linda Erb, and Kelly Jaakkola. "Maternal signature whistle use aids mother-calf reunions in a bottlenose dolphin, Tursiops truncatus." Behavioural Processes 126 (May 2016): 64–70. http://dx.doi.org/10.1016/j.beproc.2016.03.005.

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23

Bebus, Sara, and Denise Herzing. "Mother-Offspring Signature Whistle Similarity and Patterns of Association in Atlantic Spotted Dolphins (Stenella frontalis)." Animal Behavior and Cognition 2, no. 1 (2015): 71–87. http://dx.doi.org/10.12966/abc.02.06.2015.

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24

Jones, Brittany L., Risa Daniels, Samantha Tufano, and Sam Ridgway. "Five members of a mixed-sex group of bottlenose dolphins share a stereotyped whistle contour in addition to maintaining their individually distinctive signature whistles." PLOS ONE 15, no. 5 (2020): e0233658. http://dx.doi.org/10.1371/journal.pone.0233658.

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25

Jagarlamudi, V. K., T. Dudok de Wit, C. Froment, et al. "Whistler wave occurrence and the interaction with strahl electrons during the first encounter of Parker Solar Probe." Astronomy & Astrophysics 650 (June 2021): A9. http://dx.doi.org/10.1051/0004-6361/202039808.

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Aims. We studied the properties and occurrence of narrowband whistler waves and their interaction with strahl electrons observed between 0.17 and 0.26 au during the first encounter of Parker Solar Probe. Methods. We used Digital Fields Board band-pass filtered (BPF) data from FIELDS to detect the signatures of whistler waves. Additionally parameters derived from the particle distribution functions measured by the Solar Wind Electrons Alphas and Protons (SWEAP) instrument suite were used to investigate the plasma properties, and FIELDS suite measurements were used to investigate the electromagn
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26

Zuber, Krzysztof W., and Krzysztof J. Opieliński. "A Genetics-Based Method for Analysing and Synthesizing Animal Vocal Communication and its Application to Bottlenose Dolphins' Signature Whistle Analysis and Generation." Acta Acustica united with Acustica 104, no. 4 (2018): 657–67. http://dx.doi.org/10.3813/aaa.919205.

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27

Jacobson, A. R., R. H. Holzworth, R. F. Pfaff, and M. P. McCarthy. "Study of oblique whistlers in the low-latitude ionosphere, jointly with the C/NOFS satellite and the World-Wide Lightning Location Network." Annales Geophysicae 29, no. 5 (2011): 851–63. http://dx.doi.org/10.5194/angeo-29-851-2011.

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Abstract. We use the C/NOFS satellite's Vector Electric Field Instrument (VEFI) to study the relationship of impulsive electron whistlers in the low-latitude ionosphere to lightning strokes located by the World-Wide Lightning Location Network (WWLLN). In order to systematize this work, we develop an automated algorithm for recognizing and selecting the signatures of electron whistlers amongst many Very Low Frequency (VLF) recordings provided by VEFI. We demonstrate the application of this whistler-detection algorithm to data mining of a ~ two-year archive of VEFI recordings. It is shown that t
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28

Sauer, K., and R. D. Sydora. "Beam-excited whistler waves at oblique propagation with relation to STEREO radiation belt observations." Annales Geophysicae 28, no. 6 (2010): 1317–25. http://dx.doi.org/10.5194/angeo-28-1317-2010.

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Abstract. Isotropic electron beams are considered to explain the excitation of whistler waves which have been observed by the STEREO satellite in the Earth's radiation belt. Aside from their large amplitudes (~240 mV/m), another main signature is the strongly inclined propagation direction relative to the ambient magnetic field. Electron temperature anisotropy with Te⊥>Te||, which preferentially generates parallel propagating whistler waves, can be excluded as a free energy source. The instability arises due to the interaction of the Doppler-shifted cyclotron mode ω=−Ωe+kVbcosθ with the whi
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29

Błęcki, J., M. Parrot, and R. Wronowski. "ELF and VLF signatures of sprites registered onboard the low altitude satellite DEMETER." Annales Geophysicae 27, no. 6 (2009): 2599–605. http://dx.doi.org/10.5194/angeo-27-2599-2009.

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Abstract. We report the observation of ELF and VLF signature of sprites recorded on the low altitude satellite DEMETER during thunderstorm activity. At an altitude of ~700 km, waves observed on the E-field spectrograms at mid-to-low latitudes during night time are mainly dominated by up-going 0+ whistlers. During the night of 20 July 2007 two sprites have been observed around 20:10:08 UT from the observatory located on the top of the mountain Śnieżka in Poland (50°44'09" N, 15°44'21" E, 1603 m) and, ELF and VLF data have been recorded by the satellite at about 1200 km from the region of thunde
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30

Esch, H. Carter, Laela S. Sayigh, and Randall S. Wells. "Quantifying parameters of bottlenose dolphin signature whistles." Marine Mammal Science 25, no. 4 (2009): 976–86. http://dx.doi.org/10.1111/j.1748-7692.2009.00289.x.

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31

Fripp, Deborah, Caryn Owen, Ester Quintana-Rizzo, et al. "Bottlenose dolphin (Tursiops truncatus) calves appear to model their signature whistles on the signature whistles of community members." Animal Cognition 8, no. 1 (2004): 17–26. http://dx.doi.org/10.1007/s10071-004-0225-z.

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32

Morgenbesser, Hugh B., John Buck, and Peter Tyack. "Analysis, modification, and synthesis of dolphin signature whistles." Journal of the Acoustical Society of America 95, no. 5 (1994): 2887. http://dx.doi.org/10.1121/1.409356.

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33

Quick, Nicola J., and Vincent M. Janik. "Bottlenose dolphins exchange signature whistles when meeting at sea." Proceedings of the Royal Society B: Biological Sciences 279, no. 1738 (2012): 2539–45. http://dx.doi.org/10.1098/rspb.2011.2537.

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34

Sayigh, Laela S., H. Carter Esch, Randall S. Wells, and Vincent M. Janik. "Facts about signature whistles of bottlenose dolphins, Tursiops truncatus." Animal Behaviour 74, no. 6 (2007): 1631–42. http://dx.doi.org/10.1016/j.anbehav.2007.02.018.

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35

King, Stephanie L., Laela S. Sayigh, Randall S. Wells, Wendi Fellner, and Vincent M. Janik. "Vocal copying of individually distinctive signature whistles in bottlenose dolphins." Proceedings of the Royal Society B: Biological Sciences 280, no. 1757 (2013): 20130053. http://dx.doi.org/10.1098/rspb.2013.0053.

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36

Buck, John R., and Peter L. Tyack. "A quantitative measure of similarity for tursiops truncatus signature whistles." Journal of the Acoustical Society of America 94, no. 5 (1993): 2497–506. http://dx.doi.org/10.1121/1.407385.

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37

Nakahara, Fumio, and Nobuyuki Miyazaki. "Vocal exchanges of signature whistles in bottlenose dolphins (Tursiops truncatus)." Journal of Ethology 29, no. 2 (2011): 309–20. http://dx.doi.org/10.1007/s10164-010-0259-4.

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38

Johnson, M. P., U. S. Inan, and D. S. Lauben. "Subionospheric VLF signatures of oblique (nonducted) whistler-induced precipitation." Geophysical Research Letters 26, no. 23 (1999): 3569–72. http://dx.doi.org/10.1029/1999gl010706.

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39

Macfarlane, Nicholas, Vincent Janik, Frants H. Jensen, et al. "Signature whistles facilitate reunions and/or advertise identity in Bottlenose Dolphins." Journal of the Acoustical Society of America 141, no. 5 (2017): 3543. http://dx.doi.org/10.1121/1.4987492.

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40

Papale, Elena, Gaspare Buffa, Francesco Filiciotto, et al. "Biphonic calls as signature whistles in a free-ranging bottlenose dolphin." Bioacoustics 24, no. 3 (2015): 223–31. http://dx.doi.org/10.1080/09524622.2015.1041158.

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41

McCowan, Brenda, and Diana Reiss. "The fallacy of ‘signature whistles’ in bottlenose dolphins: a comparative perspective of ‘signature information’ in animal vocalizations." Animal Behaviour 62, no. 6 (2001): 1151–62. http://dx.doi.org/10.1006/anbe.2001.1846.

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42

JANIK, VINCENT M., and PETER J. B. SLATER. "Context-specific use suggests that bottlenose dolphin signature whistles are cohesion calls." Animal Behaviour 56, no. 4 (1998): 829–38. http://dx.doi.org/10.1006/anbe.1998.0881.

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43

TYACK, PETER L. "DEVELOPMENT AND SOCIAL FUNCTIONS OF SIGNATURE WHISTLES IN BOTTLENOSE DOLPHINS TURSIOPS TRUNCATUS." Bioacoustics 8, no. 1-2 (1997): 21–46. http://dx.doi.org/10.1080/09524622.1997.9753352.

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44

Luís, Ana Rita, Miguel N. Couchinho, and Manuel E. dos Santos. "Signature whistles in wild bottlenose dolphins: long-term stability and emission rates." acta ethologica 19, no. 2 (2015): 113–22. http://dx.doi.org/10.1007/s10211-015-0230-z.

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45

Bespalov, P. A., V. V. Zaitsev, and A. V. Stepanov. "Energetic Particles in a Flare Loop: Spectra and Radiation Signatures." Symposium - International Astronomical Union 142 (1990): 421–27. http://dx.doi.org/10.1017/s0074180900088343.

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It has been shown that high energy particle spectra, particle dynamics, and radiation in a flare loop are determined by wave-particle interactions. The electron-whistler interaction occurs under conditions of strong pitch angle diffusion that makes the particle distribution function isotropic. The flare loop electrons retain information about the particle source spectrum. The interaction of energetic ions with Alfven waves is characterized by strong, moderate, and weak diffusion. The time delays in hard X-ray and gamma-ray emission during one-step acceleration processes might be understood in
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46

Gridley, Tess, Victor G. Cockcroft, Elizabeth R. Hawkins, Michelle Lemon Blewitt, Tadamichi Morisaka, and Vincent M. Janik. "Signature whistles in free-ranging populations of Indo-Pacific bottlenose dolphins,Tursiops aduncus." Marine Mammal Science 30, no. 2 (2013): 512–27. http://dx.doi.org/10.1111/mms.12054.

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47

Lima, Alice, and Yvonnick Le Pendu. "Evidence for signature whistles in Guiana dolphins (Sotalia guianensis) in Ilhéus, northeastern Brazil." Journal of the Acoustical Society of America 136, no. 6 (2014): 3178–85. http://dx.doi.org/10.1121/1.4900829.

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48

Janik, Vincent M., Stephanie L. King, Laela S. Sayigh, and Randall S. Wells. "Identifying signature whistles from recordings of groups of unrestrained bottlenose dolphins (Tursiops truncatus)." Marine Mammal Science 29, no. 1 (2012): 109–22. http://dx.doi.org/10.1111/j.1748-7692.2011.00549.x.

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49

Cheng, Zhaolong, Ding Wang, Haiping Wu, et al. "Stereotyped Whistles May Be First Evidence to Suggest the Possibility of Signature Whistles in an InjuredIndo-Pacific Humpback Dolphin (Sousa chinensis." Aquatic Mammals 43, no. 2 (2017): 185–92. http://dx.doi.org/10.1578/am.43.2.2017.185.

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50

Bolton, S. J., R. M. Thorne, D. A. Gurnett, W. S. Kurth, and D. J. Williams. "Enhanced whistler-mode emissions: Signatures of interchange motion in the Io torus." Geophysical Research Letters 24, no. 17 (1997): 2123–26. http://dx.doi.org/10.1029/97gl02020.

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