Media type: E-Article Title: Invaders versus endemics: alien gastropod species in ancient Lake Ohrid Contributor: Albrecht, Christian; Föller, Kirstin; Clewing, Catharina; Hauffe, Torsten; Wilke, Thomas imprint: Springer Science and Business Media LLC, 2014 Published in: Hydrobiologia Language: English DOI: 10.1007/s10750-013-1724-1 ISSN: 0018-8158; 1573-5117 Keywords: Aquatic Science Origination: Footnote: