Some Characterizations of \((r,s)\)-Fuzzy \(b\)-Open Sets with Applications in Double Fuzzy Topological Spaces. Eur. J. Pure Appl. Math. [Internet]. 2025 May 1 [cited 2026 Feb. 23];18(2):5911. Available from: https://www.ejpam.com/ejpam/article/view/5911