%0 Journal Article %A P. N. Dushkov %T On a~method for the approximate solution of nonlinear singular integro-differential equations %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1981 %P 21-25 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1981_12_a3/ %G ru %F IVM_1981_12_a3