- Oscar Castillo, Patricia Melin, Oscar Montiel, Roberto Sepúlveda, Witold Pedrycz, Janusz Kacprzyk, editors, Theoretical Advances and Applications of Fuzzy Logic and Soft Computing, Selection of Papers from IFSA 2007. Volume 42 of Advances in Soft Computing, Springer, 2007.
- Patricia Melin, Oscar Castillo, Luis T. Aguilar, Janusz Kacprzyk, Witold Pedrycz, editors, Foundations of Fuzzy Logic and Soft Computing, 12th International Fuzzy Systems Association World Congress, IFSA 2007, Cancun, Mexico, June 18-21, 2007, Proceedings. Volume 4529 of Lecture Notes in Computer Science, Springer, 2007.