DUDEK, Zenon Waldemar. Unity or multiplicity of psychology. Reflections on contemporary depth psychology. Studia Psychologica: Theoria et praxis, [S. l.], n. 5, p. 243–259, 2004. Disponível em: https://czasopisma.uksw.edu.pl/index.php/sp/article/view/2604. Acesso em: 6 dec. 2025.