Krueger, K., & Flauger, B. (2009). Social and individual olfaction through horse faeces (Equus caballus). In P. M. Kappeler, & M. Schwibbe (Eds.), Program of the 4. Thementagung der Ethologischen Gesellschaft, Februar 12 -14, 2009. (23). Göttingen: Dpz.