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Helary, S.F.; Shaw, J.A.; Brown, D.; Clauss, M.; Owen-Smith, R.N. 2012. Black rhinoceros (Diceros bicornis) natural diets: comparing iron levels across seasons and geographical locations. Journal of Zoo and Wildlife Medicine 43 (3s): S48-S54.

Helary, S.F.; Owen-Smith, R.N.; Shaw, J.A.; Brown, D.; Hattas, D. 2009. Comparison of the chemical composition of the diet of three free-ranging black rhinoceros (Diceros bicornis) populations with zoo diets [abstract only]. Zoo Animal Nutrition IV. p. 17.