00437nam a2200133Ia 4500082001700000100003000017245009700047260003500144300000600179490004900185500000500234700003400239700003000273  a516bG836.CC  aGreub, Werner and Others.  aConnections, curvature and cohomologybcBy Werner Greub, Stephen Halperin and Ray Vanstone.  aNew YorkbAcademic Pressc1972  a   aPure and Applied Mathematicsv v.47- 1, 2, 3  a  aHalperin, Stephen ; jt. auth.  aVanstone, Ray ; jt. auth.