History of primate behavioural and ecological field research at the German Primate Center Heymann, E.W. Ganzhorn, Jörg 2015 - Forschungsinformationssystem der UHH
Disproportional representation of primates in the ecological literature Heymann, E.W. Zinner, D. Ganzhorn, Jörg 2013 - Forschungsinformationssystem der UHH