%0 Journal Article %A V. V. Belokurov %A Yu. P. Solov'ev %A E. T. Shavgulidze %T Method of approximate calculating path integrals by using perturbation theory with convergent series.~I %J Teoretičeskaâ i matematičeskaâ fizika %D 1996 %P 51-59 %V 109 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_1996_109_1_a4/ %G ru %F TMF_1996_109_1_a4