@article{DE_2000_36_1_a17,
     author = {Yu. A. Klokov},
     title = {One theorem for the {Neumann} boundary value problem},
     journal = {Differencialʹnye uravneni\^a},
     pages = {127--128},
     publisher = {mathdoc},
     volume = {36},
     number = {1},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2000_36_1_a17/}
}