MICHNOWSKI, Lesław. A Cybernetic Approach to Sacrum – Profanum Relation. Problemy Ekorozwoju / Problems of Sustainable Development, [S. l.], v. 5, n. 1, p. 109–138, 2010. Disponível em: https://ph.pollub.pl/index.php/preko/article/view/4772. Acesso em: 13 dec. 2025.