%0 Journal Article %A A. V. Kozak %A I. B. Simonenko %T Projection methods for solving two-dimensional singular equations on a torus %J Funkcionalʹnyj analiz i ego priloženiâ %D 1978 %P 74-75 %V 12 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_1978_12_1_a11/ %G ru %F FAA_1978_12_1_a11