Proceedings European Otter Workshop. Workshop (08.-11.06.2015 : Stockholm, Sweden)

IUCN/SSC Otter Specialist Group Bulletin = International Union for Conservation of Nature and Natural Resources Otter Specialist Group bulletin. -- Luxembourg : IUCN/SSC Otter Specialist Group, 2016 - Súbor: IUCN/SSC Otter Specialist Group Bulletin. -- Luxembourg : IUCN/SSC Otter Specialist Group, 1986-