%0 Journal Article %A G. M. Agayan %A Vad. V. Voevodin %A S. Yu. Romanov %T Applicability of stratified models for solving problems of three-dimensional ultrasonic tomography %J Numerical methods and programming %D 2013 %P 533-542 %V 14 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMP_2013_14_4_a11/ %G ru %F VMP_2013_14_4_a11