Doubt fuzzy BCI-algebras. Zhan, Jianming; Tan, Zhisong — 2002 International Journal of Mathematics and Mathematical Sciences
T -fuzzy multiply positive implicative BCC-ideals of BCC-algebras. Zhan, Jianming; Tan, Zhisong — 2003 International Journal of Mathematics and Mathematical Sciences
Fuzzy multiply positive implicative hyper BCK-ideals of hyper BCK-algebras. Zhan, Jianming; Xiang, Dajing; Tan, Zhisong — 2004 International Journal of Mathematics and Mathematical Sciences
Generalizations of principally quasi-injective modules and quasiprincipally injective modules. Zhu, Zhanmin; Xia, Zhangsheng; Tan, Zhisong — 2005 International Journal of Mathematics and Mathematical Sciences