Solovey, Mykola. “Values and Organizational Principles of the «Plast» in Olexander Tysovskyʼs Views (1886-1968)”. Pedagogical Discourse0, no. 15 (October 1, 2013): 668-673. Accessed December 1, 2021. https://ojs.kgpa.km.ua/index.php/peddiscourse/article/view/936.