DERECH, V. D. Stable Quasiorderings on Some Permutable Inverse Monoids. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 66, n. 4, p. 445–457, 2014. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2147. Acesso em: 14 apr. 2025.