RIEČANOVÁ, Zdenka; ZAJAC, Michal. Intervals in Generalized Effect Algebras and their Sub-generalized Effect Algebras. Acta Polytechnica, [S. l.], v. 53, n. 3, 2013. DOI: 10.14311/1817. Disponível em: https://ojst.is.cvut.cz/ojs/index.php/ap/article/view/1817.. Acesso em: 9 jul. 2025.