@article{ZVMMF_2011_51_6_a6,
     author = {Do Ngoc Thanh and V. B. Levenshtam},
     title = {Asymptotic integration of a~system of differential equations with a~large parameter in the critical case},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {1043--1055},
     publisher = {mathdoc},
     volume = {51},
     number = {6},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_2011_51_6_a6/}
}