%0 Journal Article %A A. V. Goncharsky %A S. Y. Romanov %A S. Yu. Seryozhnikov %T The problem of choosing initial approximations in inverse problems of ultrasound tomography %J Numerical methods and programming %D 2017 %P 312-321 %V 18 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMP_2017_18_3_a10/ %G ru %F VMP_2017_18_3_a10