Chen Quan-guo, Wang Shuan-hong
International Electronic Journal of Algebra
85-112
International Electronic Journal of Algebra
International Electronic Journal of Algebra
International Electronic Journal of Algebra
International Electronic Journal of Algebra
A. Alvarado García, H. Alberto Rincón Mejía, José Ríos Montes
International Electronic Journal of Algebra
International Electronic Journal of Algebra
International Electronic Journal of Algebra