1. Fuzzy sets and Systems: Theory and Applications;Dubois,1980
2. Canonical form of a transitive fuzzy matrix;Hashimoto;Fuzzy Sets and Systems,1983
3. Subinverses of fuzzy matrices;Hashimoto;Fuzzy Sets and Systems,1984
4. Note on the semigroup of fuzzy matrices;Kim;J. Korean Math. Soc.,1979
5. Idempotents and inverses in fuzzy matrices;Kim;Bull. Malaysian Math. Soc.,1983