%0 Journal Article %A B. G. Gabdulkhaev %T Optimization of direct and projection methods for solving operator equations %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1999 %P 3-18 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1999_12_a0/ %G ru %F IVM_1999_12_a0