%0 Journal Article %A Yocom, K. L. %T Unique Factorization Theorems for Subalgebras of the Incidence Algebra %J Canadian journal of mathematics %D 1972 %P 967-977 %V 24 %N 5 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1972-097-9/ %R 10.4153/CJM-1972-097-9 %F 10_4153_CJM_1972_097_9