%0 Journal Article %A A. N. Kucherov %T Self-focusing and quasiwaveguide propagation of a Gaussian beam in a supersonic current of gas %J Doklady Akademii Nauk %D 1980 %P 309-311 %V 251 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1980_251_2_a12/ %G ru %F DAN_1980_251_2_a12