Application of sperm banking to assist in genetic management of endangered neotropical primate populations in Brazil - Valle, R. R; Roos, Charles; Schneider, P; Schoenmann, U; Silva, K. S. M; Carvalho, R. A; Guimarães, Marcelo Alcindo de Barros Vaz; Nayudu, P. L (Göttinger Freilandtage, 2005)