KÄPPLINGER, Bernd. Adult Education Research in Poland and Germany on the European Level: Two Sleeping Beauties?. Rocznik Andragogiczny, [S. l.], v. 21, p. 393–410, 2015. DOI: 10.12775/RA.2014.028. Disponível em: https://apcz.umk.pl/RA/article/view/RA.2014.028. Acesso em: 8 lip. 2025.