%0 Journal Article %A B. Ion %T A Poincar�-Birkhoff-Witt Theorem for Hopf Algebras with Central Hopf Algebra Coradical %J Journal of Lie theory %D 2012 %P 291-3 %V 22 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/JLT_2012_22_1_JLT_2012_22_1_a11/ %F JLT_2012_22_1_JLT_2012_22_1_a11