@article{IM2_1968_2_4_a10,
     author = {S. A. Lomov},
     title = {The construction of asymptotic solutions of certain problems involving parameters},
     journal = {Izvestiya. Mathematics },
     pages = {849--877},
     publisher = {mathdoc},
     volume = {2},
     number = {4},
     year = {1968},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1968_2_4_a10/}
}