Снігирьов, С.М., Мединець, В.І., Абакумов, О.Н. and Піцик, В.З. 2017. Visual Monitoring of Dolphins in the Coastal Waters Near Zmiinyi Island (Black Sea) in 2010-2016. Visnyk of V. N. Karazin Kharkiv National University series «Еcоlogy». 16 (Sep. 2017), 91-95. DOI:https://doi.org/10.26565/1992-4259-2017-16-13.