Khan, Vakeel A., and Mobeen Ahmad. “On (λ,μ)- Zweier Ideal Convergence in Intuitionistic Fuzzy Normed Space”. Yugoslav Journal of Operations Research 30, no. 4 (November 1, 2020): 413–427. Accessed July 29, 2025. https://yujor.erc.fon.bg.ac.rs/index.php/yujor/article/view/637.