X Huang, Y Yin, J Zhan - Journal of Applied Mathematics, 2013 - Wiley Online Library
The concepts of (∈ γ,∈ γ∨ qδ)‐fuzzy bi‐hyperideals and (∈ γ,∈ γ∨ qδ)‐fuzzy quasi‐
hyperideals of a semihyperring are introduced, and some related properties of such (∈ γ,∈ …