Brown, J.L.; Bellem, A.C.; Fouraker, M.; Wildt, D.E.; Roth, T.L. 2001. Comparative analysis of gonadal and adrenal activity in the black and white rhinoceros in North America by noninvasive endocrine monitoring. Zoo Biology 20 (6): 463-486, figs. 1-12, table 1.
Roth, T.L.; MacRae, M.A.; Bellem, A.C.; Kroll, J.L.; Brown, J.L.; O’Brien, J.K. 2001. Ultrasound and endocrine evaluation of the ovarian cycle and early pregnancy in the Sumatran rhinoceros, Dicerorhinus sumatrensis. Reproduction 121: 139-149, figs. 1-5, table 1.
MacIninch, M.; Bellem, A.C.; Macdonald, S.E.; Goodrowe, K.L.; Graham, L.H.; Brown, J.L.; Roth, T.L. 1999. Monitoring fecal progestogen metabolites in the Sumatran rhinoceros (Dicerorhinus sumatrensis) by enzyme immunoassay.
Roth, T.L.; MacRae, M.A.; Brown, J.L.; Kroll, J.L.; Bellem, A.C.; Romo, S.; O’Brien, J.K. 1998. The reproductive physiology of a living fossil – the Sumatran rhinoceros (Dicerorhinus sumatrensis). Biology of Reproduction 58 (Suppl. 1): 176.






