Stephen J. O'Brien

Unique seminal quality in the South African cheetah and a comparative evaluation in the domestic cat.

S. O’Brien, A. V. van Dyk, D. Wildt, 1983, Biology of reproduction.

Similarity in ejaculate-endocrine characteristics in captive versus free-ranging cheetahs of two subspecies.

T. Caro, S. O’Brien, J. Brown, 1987, Biology of reproduction.