Кравчук, Г. О. “Influence of Ecological Violations on the Structure of Bentosnih Foraminifer Groupments North-Western Shelf of the Black Sea”. Visnyk of V. N. Karazin Kharkiv National University. Series Еcоlogy, no. 893, 1, pp. 57-61, https://periodicals.karazin.ua/ecology/article/view/844.