The first records of the occurrence of a North American invader Gammarus tigrinus Sexton, 1939 in the tributaries of the upper Vistula RiverIga Lewin, Dariusz Halabowski and Zbigniew RymarskiKnowl. Manag. Aquat. Ecosyst., 419 (2018) 31DOI: https://doi.org/10.1051/kmae/2018021
