Steiger, Silke S. Abteilung Kempenaers, Seewiesen, Max Planck Institut für Ornithologie, Max Planck Society;
Wikelski, M., Steiger, S. S., Gall, B., & Nelson, K. N. (2005). Sex, drugs and mating role: Testosterone-induced phenotype-switching in Galapagos marine iguanas. Behavioral Ecology, 16(1), 260-268. doi:10.1093/beheco/arh160.