2000, SEMIGROUP FORUM, Delgado,M;Fernandes,VH
2000, ALGEBRA UNIVERSALIS, Blyth,TS;Silva,HJ
2000, COMMUNICATIONS IN ALGEBRA, Fernandes,VH
2000, COMMUNICATIONS IN ALGEBRA, Araujo,J;Silva,FC
2000, ARCHIVE FOR MATHEMATICAL LOGIC, Kahle,R
2000, First Irish Conference on the Mathematical Foundations of Computer Science and Information Technology, MFCSIT 2000, Cork, Ireland, July 20-21, 2000, Kahle,R
2000, Computer Science Logic, 14th Annual Conference of the EACSL, Fischbachau, Germany, August 21-26, 2000, Proceedings, Kahle,R;Studer,T