%0 Journal Article %A A. V. Elesin %A A. Sh. Kadyrova %T Modified two-step Levenberg-Marquardt methods in the hydraulic conductivity identification problem %J Numerical methods and programming %D 2013 %P 362-369 %V 14 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMP_2013_14_3_a11/ %G ru %F VMP_2013_14_3_a11