%0 Journal Article %A N. L. Manokhina %A R. A. Shafiev %T Solution of a $2$-constrained pseudo-inversion problem by a relaxation method %J Trudy Instituta matematiki i mehaniki %D 2013 %P 217-225 %V 19 %N 1 %U http://geodesic.mathdoc.fr/item/TIMM_2013_19_1_a20/ %G ru %F TIMM_2013_19_1_a20