%0 Journal Article %A A. P. Katchalov %T Gaussian beams, the Hamilton–Jacobi equations and Finsler geometry %J Zapiski Nauchnykh Seminarov POMI %D 2003 %P 66-92 %V 297 %U http://geodesic.mathdoc.fr/item/ZNSL_2003_297_a4/ %G ru %F ZNSL_2003_297_a4