Santos, Lívia Bertolla, and Nelio Roberto dos Reis. 2012. “Use of Shelters and Marking Sites by Lontra Longicaudis (Olfers, 1818) in Lotic and Semilotic Environments”. Biota Neotropica 12 (1). Sao Paulo, Brazil. //www.biotaneotropica.org.br/BN/article/view/917.