DUDYK, U.B.; KRUPKA, N.O.; HALAY, O.A.; STANKO, O.M. Hygienical estimation of water quality of the wellsprings in Lviv. Environment & Health, Kyiv, Ukraine, v. 65, n. 2, p. 60, 2013. Disponível em: https://dovkil-zdorov.kiev.ua/journal/article/view/768. Acesso em: 26 aug. 2026.