%0 Journal Article %A Marcelo Aguiar %A Samuel K. Hsiao %T Canonical characters on quasi-symmetric functions and bivariate Catalan numbers %J The electronic journal of combinatorics %D 2004 %V 11 %N 2 %U http://geodesic.mathdoc.fr/articles/10.37236/1872/ %R 10.37236/1872 %F 10_37236_1872