@article{TMF_1989_78_3_a7,
     author = {A. P. Kashin and T. M. Kvaratskheliya and M. Z. Maksimov and Z. E. Chikovani},
     title = {Higher approximations of~the reduced method of~matched asymptotic expansions and its convergence},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {392--399},
     publisher = {mathdoc},
     volume = {78},
     number = {3},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1989_78_3_a7/}
}