2009, SEMIGROUP FORUM, Araujo,J;Schneider,C

2009, JOURNAL OF ALGEBRA, Tabuada,G

2009, FINITE FIELDS AND THEIR APPLICATIONS, Brison,OJ;Nogueira,JE

2009, JOURNAL OF ALGEBRA, Fernandes,VH;Gomes,GMS;Jesus,MM

2009, COMMUNICATIONS IN ALGEBRA, Araujo,J;Konieczny,J

2009, FUNDAMENTA MATHEMATICAE, Araujo,J;Wehrung,F

2009, COMPTES RENDUS MATHEMATIQUE, Cabral,J;Neto,O

2009, THEORETICAL COMPUTER SCIENCE, Cain,AJ