%0 Journal Article %A Rush, David E. %T Content Algebras %J Canadian mathematical bulletin %D 1978 %P 329-334 %V 21 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1978-057-8/ %R 10.4153/CMB-1978-057-8 %F 10_4153_CMB_1978_057_8