%0 Journal Article %A Yukihiko Namikawa %A Shigeru Mukai %T Automorphisms of Enriques surfaces which act trivially on the cohomology groups. %J Inventiones mathematicae %D 1984 %P 383-398 %V 77 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1984__77_143151/ %F IM_1984__77_143151