FILIP A-D. Coupled fixed point theorems for Zamfirescu type operators in ordered generalized Kasahara spaces: Dedicated to Professor Ioan A. Rus on the occasion of his 80th anniversary. Stud. Univ. Babeş-Bolyai Math. [Internet]. 2016 Dec. 30 [cited 2025 Feb. 5];61(4):453-66. Available from: https://studia.reviste.ubbcluj.ro/index.php/subbmathematica/article/view/5637