%0 Journal Article %A A. B. Bakushinskii %A A. S. Leonov %T New a posteriori error estimates for approximate solutions to iregular operator equations %J Numerical methods and programming %D 2014 %P 359-369 %V 15 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMP_2014_15_2_a14/ %G ru %F VMP_2014_15_2_a14