Freshening of salinized groundwater in Gdańsk Quaternary aquifer Maria Przewłócka, Beata Jaworska-Szulc, Bohdan Kozerski, Małgorzata Pruszkowska-Caceres, Adam Szymkiewicz and Andrzej Kwaterkiewicz E3S Web Conf., 54 (2018) 00025 Published online: 17 September 2018 DOI: 10.1051/e3sconf/20185400025