@article{MZM_2016_100_3_a14,
     author = {N. F. Valeev and A. Eskermesuly and Ya. T. Sultanaev},
     title = {On the {Deficiency} {Index} of a {Differential} {Operator} with {Fast} {Oscillating} {Coefficients}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {465--468},
     publisher = {mathdoc},
     volume = {100},
     number = {3},
     year = {2016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2016_100_3_a14/}
}