Engelhardt, A, Heistermann, M, Hodges, JK, Nürnberg, P and Niemitz, C (2006) Determinants of male reproductive success in wild long-tailed macaques (Macaca fascicularis)—male monopolisation, female mate choice or post-copulatory mechanisms? Behavioral Ecology and Sociobiology, 59 (6). pp. 740-752. ISSN 0340-5443

Engelhardt, A, Pfeifer, J-B, Heistermann, M, Niemitz, C, van Hooff, JARAM and Hodges, JK (2004) Assessment of female reproductive status by male longtailed macaques, Macaca fascicularis, under natural conditions. Animal Behaviour, 67 (5). pp. 915-924. ISSN 0003-3472