%0 Journal Article %A A. G. Petrov %T A direct variational method of calculating plane and axisymmetric cavitation flows %J Doklady Akademii Nauk %D 1981 %P 1323-1327 %V 257 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1981_257_6_a9/ %G ru %F DAN_1981_257_6_a9