%0 Journal Article %A A. P. Kashin %A T. M. Kvaratskheliya %A M. Z. Maksimov %A Z. E. Chikovani %T Higher approximations of the reduced method of matched asymptotic expansions and its convergence %J Teoretičeskaâ i matematičeskaâ fizika %D 1989 %P 392-399 %V 78 %N 3 %U http://geodesic.mathdoc.fr/item/TMF_1989_78_3_a7/ %G ru %F TMF_1989_78_3_a7