%0 Journal Article %A I. Sh. Slavutskii %T Generalized Voronoi congruence and the number of classes of ideals of an~imaginary quadratic field %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1966 %P 118-126 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1966_4_a16/ %G ru %F IVM_1966_4_a16