Graham, L.H.; Schwarzenberger, F.; Moestl, E.; Galama, W.; Savage, A. 2001. A versatile enzyme immunoassay for the determination of progestogens in feces and serum. Zoo Biology 20 (3): 227-236, figs. 1-3, table 1.
Palme, R.; Robia, C.; Messmann, S.; Moestl, E. 1998. Measuring faecal cortisol metabolites: a non-invasive tool to evaluate adrenocortical activity in mammals. Advances in Ethology 33: 27.
Schwarzenberger, F.; Tomasova, K.; Holeckova, D.; Matern, B.; Moestl, E. 1996. Measurement of fecal steroids in the black rhinoceros (Diceros bicornis) using group-specific enzyme immunoessays for 20-oxo-pregnanes. Zoo Biology 15 (2): 159-171, figs. 1-4, tables 1-2.
Schwarzenberger, F.; Tomasova, K.; Walzer, C.; Moestl, E. 1993. Preliminary results of fecal progestagen evaluations in the white rhinoceros (Ceratotherium simum) indicate an estrous cycle length of about 10 weeks. Biology of Reproduction 50 Suppl 1: 171.
Hindle, J.E.; Moestl, E.; Hodges, J.K. 1992. Measurement of urinary oestrogens and 20a-dihydroprogesterone during ovarian cycles of black (Diceros bicornis) and white (Ceratotherium simum) rhinoceroses. Journal of Reproduction and Fertility 94: 237-249, figs. 1-5, table 1.






