%0 Journal Article %A Sh. A. Ismatullaev %T A~two-dimensional additive problem with an increasing number of terms %J Matematičeskie zametki %D 1975 %P 19-25 %V 18 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1975_18_1_a2/ %G ru %F MZM_1975_18_1_a2