%0 Journal Article %A O. M. Fomenko %T Class numbers of indefinite binary quadratic forms and the residual indices of integers modulo~$p$ %J Zapiski Nauchnykh Seminarov POMI %D 2002 %P 179-199 %V 286 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2002_286_a13/ %G ru %F ZNSL_2002_286_a13