Seawater intrusion due to pumping mitigated by natural freshwater flux: a case study in Władysławowo, northern PolandMałgorzata Pruszkowska-Caceres, Adam Szymkiewicz, Beata Jaworska-Szulc, Maria Przewłócka, Anna Gomuła-Kawęcka and Dawid PotrykusE3S Web Conf., 54 (2018) 00024DOI: https://doi.org/10.1051/e3sconf/20185400024