“AT THE FACULTY OF GEOLOGY AND GEOGRAPHY OF THE INTERNATIONAL CONFERENCE DEDICATED TO THE 100th ANNIVERSARY OF YSU”, Proc. YSU C: Geol. Geogr. Sci., vol. 52, no. 3 (247), pp. 215–217, Dec. 2018, doi: 10.46991/PYSU:C/2018.52.3.215.