Bordilovska O. Ukraine’s Geopolitical Choice: Historical Aspects . 63. In: Bajor P, Schöll-Mazurek K , eds. Eastern Chessboard: Geopolitical Determinants and Challenges in Eastern Europe and the South Caucasus. Vol. Societas, Vol. 88. Societas. Księgarnia Akademicka Publishing; 2015. doi:10.12797/9788376386706.05