%0 Journal Article %A A. I. Besportochnyy %A A. N. Burmistrov %T On the place of sonic points in a critical flow %J Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences %D 2021 %P 519-530 %V 25 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/VSGTU_2021_25_3_a7/ %G ru %F VSGTU_2021_25_3_a7