%0 Journal Article %A U. Stammbach %A D.W. Barnes %A P. Schmid %T Cohomological characterisations of saturated formations and homomorphs of finite groups. %J Commentarii mathematici Helvetici %D 1978 %P 165-173 %V 53 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMH_1978__53_139731/ %F CMH_1978__53_139731