Hermes, R.; Hildebrandt, T.B.; Schwarzenberger, F.; Walzer, C.; Fritsch, G.; Goeritz, F. 2001. Reproductive disorders in white rhinoceros and the value of ultrasonographic assessment.
Walzer, C.; Goeritz, F.; Hermes, R.; Hildebrandt, T.B.; Schwarzenberger, F. 2001. Die Narkose des Breitmaulnashorns – eine Team Angelegenheit. Arbeitstagung der Zootierarzte im Deutschsprachigen Raum 20: 26-33.
Hermes, R.; Goeritz, F.; Blottner, S.; Walzer, C.; Schwarzenberger, F.; Hildebrandt, T.B. 2001. Semen collection, sperm assessment and cryo-preservation in African rhinoceroses.
Schwarzenberger, F.; Walzer, C.; Silinski, S.; Tomasova, K.; Goeritz, F.; Hildebrandt, T.B.; Hermes, R. 2001. An integrated approach for the enhancement of reproductive performance of white rhinoceroses (Ceratotherium simum) in the EEP. Newsletter European Society of Domestic Animal Reproduction (ESDAR) 6: 77-78.
Walzer, C.; Pucher, H.; Schwarzenberger, F. 2000. A restraint chute for semen collection in white rhinoceros (Ceratotherium simum simum) – preliminary results. Proceedings of the European Association of Zoo and Wildlife Veterinarians 2000: S7-S10, fig. 1.
Hermes, R.; Hildebrandt, T.B.; Schwarzenberger, F.; Walzer, C.; Goeltenboth, R.; Schneider, M.; Schnorrenberg, A.; Goeritz, F. 2000. Development of an artificial insemination technique in the African rhinoceros. Proceedings of the European Association of Zoo and Wildlife Veterinarians 2000: 139-141.
Schwarzenberger, F.; Walzer, C.; Weiss, R.; Pucher, H.; Leus, K.; Bircher, P.; Moran, J.F. 2000. Faecal cortisol metabolites in response to management practices and disturbance in different herbivores and carnivores (Ceratotherium simum, Diceros bicornis, Elephas maximum, Loxodonta africana, Okapia johnstoni, Rupicapra rupicapra and Lutra lutra). Proceedings of the European Association of Zoo and Wildlife Veterinarians 2000: 201-204.
Walzer, C.; Goeritz, F.; Pucher, H.; Hermes, R.; Thayaparan, S.; Schwarzenberger, F. 2000. Chemical restraint and anesthesia in white rhinoceros (Ceratotherium simum) for reproductive evaluation, semen collection and artificial insemination. Proceedings of the AAZV and IAAAM Joint Conference 2000: 98-101.
Kellner, K.; Walzer, C.; Foerster, M. 1999. Determination of genetic variation and relationship in the African rhinoceros (Ceratotherium simum; Diceros bicornis). EEP Research Group Newsletter 6: 23-24.
Schwarzenberger, F.; Walzer, C.; Tomasova, K.; Zima, J.; Goeritz, F.; Hermes, R.; Hildebrandt, T.B. 1999. Can the problems associated with the low reproductive rate in captive white rhinoceroses (Ceratotherium simum) be solved within the next 5 years?. Verhandlungsbericht des Internationalen Symposiums uber die Erkrankungen der Zootiere 39: 283-289.
Walzer, C. 1998. Dermal anesthesia in the white rhinoceros (Ceratotherium simum simum) using a eutectic mixture of Lidocaine and Prilocaine. Journal of Zoo Animal Medicine 29: 300-302.
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).
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.
Walzer, C.; Schwarzenberger, F. 1995. Estrous cycle induction in a white rhinoceros (Ceratotherium simum simum) and concomitant EIA fecal progestagen analysis. Proceedings of the AAZV, AAWV, WDA Joint Conference 1995: 322-324.
Schwarzenberger, F.; Walzer, C. 1995. Oestrous cycle induction in a white rhinoceros (Ceratotherium simum simum) monitored by fecal progestagen analysis. Verhandlungsbericht des Internationalen Symposiums uber die Erkrankungen der Zootiere 37: 79-83, fig. 1.
Schwarzenberger, F.; Tomasova, K.; Walzer, C.; Moestl, E. 1993. Preliminary results of fecal progestagen evaluations in the white rhinoceros (Ceratotherium simum) indicate an estrous cycle length of about 10 weeks. Biology of Reproduction 50 Suppl 1: 171.






