Zeidler, Włodzisław. “"War Landscape” of Kurt Lewin: Reasons and Ways of Quest for Own Methodology”. Studia Psychologica: Theoria et praxis, no. 9 (August 27, 2009): 179–190. Accessed November 22, 2024. https://czasopisma.uksw.edu.pl/index.php/sp/article/view/2715.