STRILCHUK, L. and YAROSH, Y. 2021. THE SOCIETIES “PROSVITA” OF VOLHYNIA VOIVODESHIP IN CONFRONTATION WITH THE POLISH AUTHORITIES (1921 – 1934). EAST EUROPEAN HISTORICAL BULLETIN. 20 (Sep. 2021). DOI:https://doi.org/10.24919/2519-058X.20.240045.