Search results
Advances in Mathematics > 2004 > 186 > 2 > 267-306
European Journal of Combinatorics > 2004 > 25 > 3 > 327-338
European Journal of Combinatorics > 2004 > 25 > 3 > 437-455
Journal of Algebra > 2003 > 267 > 2 > 421-442
Bulletin des sciences mathematiques > 2002 > 126 > 7 > 595-603
Journal of Pure and Applied Algebra > 1999 > 142 > 3 > 249-260