Reference

Ammie K. Kalan, Alex K. Piel, Roger Mundry, Roman M. Wittig, Christophe Boesch, Hjalmar S. Kühl (2016): Passive acoustic monitoring reveals group ranging and territory use: a case study of wild chimpanzees (Pan troglodytes) – Frontiers in Zoology – 2016: 34-0001-34-0011.