Vaupotič, M. and Govedič , M. 2009. Distribution of the thick shelled river mussel (Unio crassus Philippson, 1788) in the Goričko region (NE Slovenia) . Natura Sloveniae. 11, 2 (Dec. 2009), 27–38. DOI:https://doi.org/10.14720/ns.11.2.27-38.