Sexual dimorphism in shell morphology of mollusks of the genus Viviparus – important objects of water resources of UkraineOlena Uvayeva, Tetiana Vakaliuk, Georgiy Shcherbina and Elena ShimkovichE3S Web Conf., 280 (2021) 10011DOI: https://doi.org/10.1051/e3sconf/202128010011