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Silinski, S.; Walzer, C.; Schwarzenberger, F.; Hake, S.; Stolla, R. 2002. Morphologic and morphometric analysis of manually collected rhinoceros (Ceratotherium simum simum) spermatozoa. Proceedings of the European Association of Zoo and Wildlife Veterinarians 2002: 489-492, tables 1-3.

Silinski, S.; Walzer, C.; Schwarzenberger, F.; Stolla, R. 2002. Influence of alpha-2-agonists on manual semen collection in a standing white rhinoceros (Ceratotherium simum simum).

Silinski, S.; Walzer, C.; Schwarzenberger, F.; Slotta-Bachmayr, L.; Stolla, R. 2002. Pharmacological methods of enhancing penile erection for ex-copula semen collection in standing white rhinoceros (Ceratotherium simum simum). Proceedings of the European Association of Zoo and Wildlife Veterinarians 2002: 391-394, figs. 1-3.

Silinski, S.; Walzer, C.; Schwarzenberger, F.; Stolla, R. 2001. Manual semen collection in a standing rhinoceros (Ceratotherium simum simum).