Content of Ni, Pb and Zn, in selected elements of ecosystem in three bays in the area of SevastopolMarcin Niemiec, Anna Szeląg-Sikora, Natalya Kuzminova and Monika KomorowskaBIO Web Conf., 10 (2018) 01015DOI: https://doi.org/10.1051/bioconf/20181001015