Hodgden, R. 1997. Enrichment studies of 1.1 Black rhinoceros (Diceros bicornis michaeli) at Zoo Atlanta. AZA Regional Conference Proceedings 1996: 262-268, 9 figures.
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Daniel, J.C. Jr. 1995. Visual acuity of the rhinoceros. AZA Annual Conference Proceedings 1994: 343-346, 2 figures.
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Hodgden, R. 1989. Short-term separation and stress of mother and daughter Southern White rhinoceroses (Ceratotherium simum simum) at the North Carolina Zoological Park. AAZPA Regional Conference Proceedings 1988: 272-279, 5 figures.