Goossens, B., Setchell, J., James, S., Funk, S., Chikhi, L., Abulani, A., …Bruford, M. (2006). Philopatry and reproductive success in Bornean orang-utans (Pongo pygmaeus). Molecular Ecology, 15(9), 2577-2588. https://doi.org/10.1111/j.1365-294x.2006.02952.x