%0 Journal Article %A N. N. Shilov %A A. A. Duchkov %T Migration velocity analysis using a ray method asymptotics of the double square root equation %J Sibirskij žurnal industrialʹnoj matematiki %D 2024 %P 108-127 %V 27 %N 1 %U http://geodesic.mathdoc.fr/item/SJIM_2024_27_1_a7/ %G ru %F SJIM_2024_27_1_a7