STRILCHUK, .L. and DOBRZHANSKYI, .O. 2021. POLAND’S FOREIGN POLICY CONCEPTS TRADITIONS AND INNOVATIONS REGARDING UKRAINE (the XXth – theBEGINNING OF the XXIst CENTURY). EAST EUROPEAN HISTORICAL BULLETIN. 18 (Mar. 2021), 219–228. DOI:https://doi.org/10.24919/2519-058X.18.226553.