@article{ZVMMF_1987_27_9_a11,
     author = {V. L. Ivanov},
     title = {Approximation of systems of hyperbolic equations that contain large parameters in the nondifferential terms},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {1388--1394},
     year = {1987},
     volume = {27},
     number = {9},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1987_27_9_a11/}
}