Behringer, V., Hohmann, G., Stevens, J. M. G., Weltring, A., & Deschner, T. (2012).
Adrenarche in bonobos (Pan paniscus): Evidence from ontogenetic changes in urinary dehydroepiandrosterone-sulfate levels. Journal of Endocrinology, 214(1), 55-65. doi:10.1530/JOE-12-0103.