TY - JOUR AU - Goerss, Paul G. TI - Projective and Injective Hopf Algebras Over the Dyer-Lashof Algebra JO - Canadian journal of mathematics PY - 1993 SP - 944 EP - 976 VL - 45 IS - 5 UR - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1993-053-9/ DO - 10.4153/CJM-1993-053-9 ID - 10_4153_CJM_1993_053_9 ER -