%0 Journal Article %A Read, Ronald C. %T The Use of S-Functions in Combinatorial Analysis %J Canadian journal of mathematics %D 1968 %P 808-841 %V 20 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1968-080-x/ %R 10.4153/CJM-1968-080-x %F 10_4153_CJM_1968_080_x