Some kinds of (∈γ, ∈γ ∨ qδ)-fuzzy ideals of BCI-algebras

@article{Ma2011SomeKO,
  title={Some kinds of (∈γ, ∈γ ∨ qδ)-fuzzy ideals of BCI-algebras},
  author={Xueling Ma and Jianming Zhan and Young Bae Jun},
  journal={Computers & Mathematics with Applications},
  year={2011},
  volume={61},
  pages={1005-1015}
}