TY - JOUR AU - G. M. Agayan AU - Vad. V. Voevodin AU - S. Yu. Romanov TI - Applicability of stratified models for solving problems of three-dimensional ultrasonic tomography JO - Numerical methods and programming PY - 2013 SP - 533 EP - 542 VL - 14 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VMP_2013_14_4_a11/ LA - ru ID - VMP_2013_14_4_a11 ER -