MONIRI, Morteza; SHIRINKALAM, Elahe. Ultraproduct for Quantum Structures. Logic and Logical Philosophy, [S. l.], v. 28, n. 1, p. 157–171, 2018. DOI: 10.12775/LLP.2018.005. Disponível em: https://apcz.umk.pl/LLP/article/view/LLP.2018.005. Acesso em: 16 mar. 2025.