%0 Journal Article %A D. Fried %A W. Goldman %A M.W. Hirsch %T Affin manifolds with nilpotent holonomy. %J Commentarii mathematici Helvetici %D 1981 %P 487-523 %V 56 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMH_1981__56_139882/ %F CMH_1981__56_139882