TEAM, S. Green’s Relations and Regularity for Semigroups of Transformations with Restricted Range that Preserve Double Direction Equivalence Relations: Utsithon Chaichompoo, Kritsada Sangkhanan. Thai Journal of Mathematics, [S. l.], 2019. Disponível em: https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/853. Acesso em: 22 jul. 2024.