%0 Journal Article %A Peter Stevenhagen %T On a problem of Eisenstein %J Acta Arithmetica %D 1996 %P 259-268 %V 74 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-74-3-259-268/ %R 10.4064/aa-74-3-259-268 %G de %F 10_4064_aa_74_3_259_268