@article{02168677, title = {Fuzzy multiply positive implicative hyper BCK-ideals of hyper BCK-algebras.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {2004}, year = {2004}, pages = {1239-1253}, doi = {10.1155/S0161171204306186}, zbl = {1067.06018}, language = {en}, url = {http://dml.mathdoc.fr/item/02168677} }
Zhan, Jianming; Xiang, Dajing; Tan, Zhisong. Fuzzy multiply positive implicative hyper BCK-ideals of hyper BCK-algebras.. International Journal of Mathematics and Mathematical Sciences, Tome 2004 (2004) pp. 1239-1253. doi : 10.1155/S0161171204306186. http://gdmltest.u-ga.fr/item/02168677/