@article{DE_1984_20_11_a25,
     author = {S. A. Lomov and A. A. Bobodzhanov},
     title = {Asymptotic integration of problems with multiple points of the spectrum},
     journal = {Differencialʹnye uravneni\^a},
     pages = {2003--2006},
     year = {1984},
     volume = {20},
     number = {11},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1984_20_11_a25/}
}