1. An experimental study of the timing of breeding and migration in the three-spined stickleback (Gasterosteus aculeatus L.);Baggerman;Arch. Néerl. Zool.,1957
2. On the endocrine control of reproductive behaviour in the male three-spined stickleback (Gasterosteus aculeatus L.);Dies;Symp. Soc. exp. Biol.,1966
3. Zur hormonalen Steuerung der Brutpflege einiger Cichliden;Blüm;Zool. Jb., Physiol.,1966