%0 Journal Article %A Moreira, Nelma %A Reis, Rogério %T On the density of languages representing finite set partitions %J Journal of integer sequences %D 2005 %V 8 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/JIS_2005__8_2_a3/ %G en %F JIS_2005__8_2_a3