%0 Journal Article %A G. B. Khasin %T Successive Laplace transformations with stratified congruences of the axes %J Doklady Akademii Nauk %D 1962 %P 1235-1238 %V 145 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1962_145_6_a11/ %G ru %F DAN_1962_145_6_a11