KOPCIUCH, Leszek. Crisis of Values: a Critical Analysis . Ruch Filozoficzny, [S. l.], v. 77, n. 3, p. 7–20, 2021. DOI: 10.12775/RF.2021.023. Disponível em: https://apcz.umk.pl/RF/article/view/36630. Acesso em: 31 sty. 2025.