@article{FPM_1995_1_4_a1,
     author = {A. O. Abduvaliev},
     title = {Asymptotic expansions of the {Darboux} problem solutions for the singularly perturbed hyperbolic equations},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {863--869},
     publisher = {mathdoc},
     volume = {1},
     number = {4},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_1995_1_4_a1/}
}