%0 Journal Article %A Eva Bayer-Fluckiger %T Definite unimodular lattices having an automorphism of given characteristic polynomial. %J Commentarii mathematici Helvetici %D 1984 %P 509-538 %V 59 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMH_1984__59_139988/ %F CMH_1984__59_139988