%0 Journal Article %A Goerss, Paul G. %T Projective and Injective Hopf Algebras Over the Dyer-Lashof Algebra %J Canadian journal of mathematics %D 1993 %P 944-976 %V 45 %N 5 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1993-053-9/ %R 10.4153/CJM-1993-053-9 %F 10_4153_CJM_1993_053_9