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Italiya, J.; Straková. P.; Pavlacik, L.; Vahala, J.; Hyjanek, J.H.; Salat, J.; Ruzek, D.; Komárková, D.; Cerny, J. 2025. Wildlife sentinel: development of multispecies protein a-elisa for detection of sars-cov-2 antibodies in zoo animals as a proof of concept for wildlife surveillance. Journal of Wildlife Diseases 61 (2): 396-407. doi.org/10.7589/JWD-D-24-00028
Tunstall, T.; Kock, R.; Vahala, J.; Diekhans, M.; Fiddes, I.; Armstrong, J.; Paten, B.; Ryder, O.A.; Steiner, C.C. 2018. Evaluating recovery potential of the northern white rhinoceros from cryopreserved somatic cells. Genome Research 28: 1-9.
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Ryder, O.A.; Hermes, R.; Goeritz, F.; Stejskal, J.; Hrudy, J.; Vahala, J.; Loring, J.F.; Hildebrandt, T.B.; Durrant, B.S. 2015. The plight of the northern white rhinoceros: is there still hope to prevent extinction?. Proceedings of the International Conference on Diseases of Zoo and Wild Animals 2015: 1.
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Ryder, O.A.; Hermes, R.; Goeritz, F.; Stejskal, J.; Hrudy, J.; Vahala, J.; Loring, J.F.; Hildebrandt, T.B.; Durrant, B.S. 2015. Press release: Reproduction and stem cell researchers set up a rescue plan for Northern White Rhino. Press release of the Leibniz Institute in Berlin December 2015: 1.
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Ryder, O.A.; Hermes, R.; Goeritz, F.; Stejskal, J.; Hrudy, J.; Vahala, J.; Loring, J.F.; Hildebrandt, T.B.; Durrant, B.S. 2015. The plight of northern White rhinoceros (Ceratotherium simum cottoni): Is there still hope to prevent extinction? (abstract). In: Proceedings of the International Conference on diseases of zoo and wild animals (May 13-16) Barcelona: 75.
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Schwarzenberger, F.; Rietschel, W.; Vahala, J.; Holeckova, D.; Thomas, P.; Maltzan, J.; Baumgartner, K.; Schaftenaar, W. 2000. Fecal progesterone, estrogen, and androgen metaboltes for noninvasive monitoring of reproductive function in the female Indian Rhinoceros, Rhinoceros unicornis. General and Comparative Endocrinology 119: 300-307, figs. 1-4.
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Schwarzenberger, F.; Walzer, C.; Tomasova, K.; Vahala, J.; Meister, J.; Goodrowe, K.L.; Zima, J.; Strauss, G.; Lynch, M. 1998. Faecal progesterone metabolite analysis for non-invasive monitoring of reproductive function in the white rhinoceros (Ceratotherium simum). Animal Reproduction Science 53: 173-190.
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Schwarzenberger, F.; Walzer, C.; Tomasova, K.; Vahala, J.; Meister, J.; Goodrowe, K.L.; Zima, J.; Straun, G.; Lynch, M. 1998. Faecal progesterone metabolite analysis for non-invasive monitoring of reproductive function in the white rhinoceros (Ceratotherium simum). In: Patton, L.; Czekala, N.M.; Lance, V.A. 1998. Proceedings of a workshop on problems associated with the low rate of reproduction among captive-born female southern white rhinoceros (Ceratotherium simum simum). San Diego, Zoological Society. pp. 9-15, figs. 1-5, table 1.
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Vahala, J.; Vondra, Z.; Kober, M.; Petrzilek, P. 1995. Hand-feeding a black rhinoceros Diceros bicornis calf at Dvur Kralove Zoo. International Zoo Yearbook 34: 211-217, fig. 1, tables 1-6.
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Houck, M.L.; Ryder, O.A.; Vahala, J.; Kock, R.; Oosterhuis, J.E. 1994. Diploid chromosome number and chromosomal variation in the white rhinoceros (Ceratotherium simum). Journal of Heredity 85: 30-34, figs. 1-3, table 1.
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Vahala, J.; Kase, F.; Ryder, O.A. 1994. Haematological and biochemical values of the blood and blood serum of captive northern white rhinoceroses (Ceratotherium simum cottoni). Acta Veterinaria Brno 63: 99-102.
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Hindle, J.E.; Vahala, J.; Hodges, J.K. 1993. Recent advances in reproductive monitoring of rhinos in captivity and in the wild. In: Ryder, O.A. 1993. Rhinoceros biology and conservation: Proceedings of an international conference, San Diego, U.S.A. San Diego, Zoological Society. pp. 141-148, figs. 1-6, table 1.
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Svitalsky, M.; Vahala, J.; Spala, P. 1993. Breeding experience with northern white rhinoceros (Ceratotherium simum cottoni) at Zoo Dvur Kralove. In: Ryder, O.A. 1993. Rhinoceros biology and conservation: Proceedings of an international conference, San Diego, U.S.A. San Diego, Zoological Society. pp. 282-286, table 1.
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Vahala, J. 1993. Vaginal and cervical prolapse in female northern white rhinoceros Ceratotherium simum cottoni. In: Penzhorn, B.L. 1993. Proceedings of an international symposium on capture, care and management of threatened mammals. Onderstepoort, Wildlife Group of the South African Veterinary Association. pp. 21-24.
Vahala, J.; Spala, P.; Svitalsky, M. 1993. Maintaining and breeding Northern white rhinoceros Ceratotherium simum cottoni at Dvur Kralove. International Zoo Yearbook 32: 16-20, table 1.
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Vahala, J. 1990. Brief analysis of veterinary care of black rhinoceros (Diceros bicornis) at Dvur Kralove Zoo. Verhandlungsbericht des Internationalen Symposiums uber die Erkrankungen der Zootiere 32: 261-275, figs. 1-2, tables 1-6.
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Merenlender, A.M.; Woodruff, D.S.; Ryder, O.A.; Kock, R.; Vahala, J. 1989. Allozyme variation and differentiation in African and Indian rhinoceroses. Journal of Heredity 80: 377-382, fig. 1, tables 1-3.
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