2003, ANNALS OF PURE AND APPLIED LOGIC, Kahle,R

2003, ALGEBRA UNIVERSALIS, Araujo,J;Mitchell,JD;Silva,N

2003, COMMUNICATIONS IN ALGEBRA, Rodrigues,PJV;Silva,HJ

2003, SIAM JOURNAL ON MATRIX ANALYSIS AND APPLICATIONS, Johnson,CR;Duarte,AL;Saiago,CM

2003, Colloquium Mathematicum, Ara√∫jo,J

2003, FIBONACCI QUARTERLY, Brison,OJ;Nogueira,JE

2003, JOURNAL OF ALGEBRA, Araujo,J;Konieczny,J

2003, LINEAR ALGEBRA AND ITS APPLICATIONS, Johnson,CR;Duarte,AL;Saiago,CM

2003, SEMIGROUP FORUM, Araujo,J

2004, COMMUNICATIONS IN ALGEBRA, Blyth,TS;Fang,J;Silva,HJ