Olivier, A.; Lane, E.; Volkmann, D.H.; Hofmeyr, M.; Stegmann, G.F. 2001. Rectal prolapse associated with a healed pelvic fracture in a pregnant free-ranging African black rhinoceros (Diceros bicornis), part 2: surgery and necropsy.
Journal of the South African veterinary Association 72 (4): 242-244, figs. 1-3.