Marcinkiewicz-Wilk, A. i Jurczyk-Romanowska, E. 2018. The development and implementation of ideas of lifelong learning in Europe at the dawn of the 21st century. Journal of Education Culture and Society. 9, 1 (cze. 2018), 39–49. DOI:https://doi.org/10.15503/jecs20181.39.49.