%0 Journal Article %A O. M. Fomenko %T On the mean number of solutions of certain congruences %J Zapiski Nauchnykh Seminarov POMI %D 1998 %P 192-206 %V 254 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1998_254_a11/ %G ru %F ZNSL_1998_254_a11