Peter Apostoli, Akira Kanda. Upper and Lower Recursion Schemes in Abstract Approximation Spaces. In Guoyin Wang, Qing Liu, Yiyu Yao, Andrzej Skowron, editors, Rough Sets, Fuzzy Sets, Data Mining, and Granular Computing, 9th International Conference, RSFDGrC 2003, Chongqing, China, May 26-29, 2003, Proceedings. Volume 2639 of Lecture Notes in Computer Science, pages 205-212, Springer, 2003. [doi]
Abstract is missing.