Usik, V. I., et al. “KOROLEVO II: TO THE QUESTION OF THE EPIGRAVETTIAN TECHNOCOMPLEX (LAYER 0) AND THE CULTURAL-STRATIGRAPHIC SEQUENCE OF THE SITE”. Archaeology and Early History of Ukraine, vol. 32, no. 3, Sept. 2019, pp. 18-36, doi:10.37445/adiu.2019.03.02.