%0 Journal Article %A Mitsuhiro Takeuchi %T A Correspondence between Hopf Ideals and Sub-Hopf Algebras. %J Manuscripta mathematica %D 1972 %P 251-270 %V 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM2_1972__7_154119/ %F MM2_1972__7_154119