Gromov, Y. et al. 2018. FOREIGN LANGUAGE COMPETENCE OF THE CITIZENS OF POLAND AND CZECH REPUBLIC WITHIN THE CONTEXT OF CURRENT ALL-EUROPEAN LINGUISTIC. SOCIETY. INTEGRATION. EDUCATION. Proceedings of the International Scientific Conference. 3, (May 2018), 512–523. DOI:https://doi.org/10.17770/sie2018vol1.3077.