Панкратьєва, В. В. “Modeling of Education system’s Developmental Trajectory in Lugansk Region”. Visnyk of V. N. Karazin Kharkiv National University, series "Geology. Geography. Ecology" 39, no. 1084 (December 5, 2013): 160-167. Accessed November 21, 2024. https://periodicals.karazin.ua/geoeco/article/view/7577.