V.N. Karazin Kharkiv National University
Zaporizhzhia National University
State Institution "Luhansk Taras Shevchenko National University"
Drohobych Ivan Franko State Pedagogical University
Odesa I.I. Mechnikov National University
Taras Shevchenko National University of Kyiv
Borys Grinchenko Kyiv University
