1. Adolescent exaggeration in female catarrhine primates;Anderson;Primates,1994
2. Sexual swelling relative to occurrence and timing of ovulation in Papio sp.;Aranda;Am. J. Phys. Anthropol.,2006
3. Barelli, C., Heistermann, M., in press. Monitoring female reproductive status using fecal hormone analysis and preliminary data on patterns of genital swellings in relation to female cycle stage in captive and wild white-handed gibbons (Hylobates lar). In: Lappan, S.M., Whittaker, D., Geissmann T. (Eds.), The Gibbons: New Perspectives on Small Ape Socioecology and Population Biology. Springer, Berlin.
4. Reproductive parameters of mandrills at the Tulsa Zoo;Bettinger;Zoo Biol.,1995
5. Successful breeding of the laboratory-housed gibbon (Hylobates lar);Breznock;Lab. Anim. Sci.,1977