%0 Journal Article %A P. D. Lebedev %A A. A. Uspenskii %T On smoothness conditions and selection of the edge of a scattering surface in one class of 3D time-optimal problems %J Izvestiya Instituta Matematiki i Informatiki Udmurtskogo Gosudarstvennogo Universiteta %D 2024 %P 37-48 %V 63 %I mathdoc %U http://geodesic.mathdoc.fr/item/IIMI_2024_63_a2/ %G ru %F IIMI_2024_63_a2