Orthogonal Symmetric Higher bi-Derivations on Semiprime Г-Rings. Baghdad Science Journal, Iraq, Baghdad, v. 16, n. 4(Suppl.), p. 1075, 2019. DOI: 10.21123/bsj.2019.16.4(Suppl.).1075. Disponível em: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/4608.. Acesso em: 1 may. 2024.