Styskal, Oksana     Analysis of modern safe methods of drinking water disinfection [Текст] / Oksana Styskal, Vasiliy Petruk, Volodymyr Pohrebennyk, Vitaliy Ishchenko // New trends in the ecological and biological research : book of abstr. intern. sci. conf., 9-11 Sept. 2015, Univ. of Presov, Slovak Rep. / Univ. of Presov, Fac. of Humanities and Natural Sciences, Greek-Catholic Theol. Fac., Fac. of Orthodox Theology. — Presov, 2015. — P. 48.