Algebraic Description of Technical Chemical Systems III. Transformations of Material Systems . Hungarian Journal of Industry and Chemistry, [S. l.], v. 1, n. 4, p. 533–554, 1973. DOI: 10.1515/551. Disponível em: https://hjic.mk.uni-pannon.hu/index.php/hjic/article/view/551. Acesso em: 17 feb. 2025.