RYDZEWSKI, P.; ZABOLSKI, T. Theory of Quality. Acta Universitatis Lodziensis. Folia Philosophica. Ethica-Aesthetica-Practica, [S. l.], n. 5, p. 47–60, 1988. DOI: 10.18778/0208-6107.05.04. Disponível em: https://czasopisma.uni.lodz.pl/philosophica/article/view/17571. Acesso em: 20 may. 2024.