@article{DE_1986_22_11_a19,
     author = {V. N. Bobochko and S. A. Lomov},
     title = {Singularly perturbed {Vall\'ee-Poussin} problem with alternating spectrum},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1997--1999},
     publisher = {mathdoc},
     volume = {22},
     number = {11},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1986_22_11_a19/}
}