 | Burrell, K.; Wehnelt, S.; Waran, N., 2004. Olfactory enrichment and visitor effects in black rhinoceroses (Diceros bicornis) at two UK zoos. Proceedings of the Annual Symposium on Zoo Research 6: 187-201, figs. 1-5
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| Boczek, Helen A.; Wehnelt, S., 2002. Behavioural assessment following the relocation of Rosie, the black rhinoceros (Diceros bicornis michaeli). Federation Research Newsletter 3 (1): 1
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