Martyniuk, V. O., I. V. Zubkovych, and S. V. Andriichuk. “The Landscape-Geographical Assessment of Sapropel Resource Capacity of Lubytivske Lake (Volyn Polessia)”. Man and Environment. Issues of Neoecology, no. 30, Jan. 2019, pp. 91-103, doi:10.26565/1992-4224-2018-30-07.