@article{DE_1978_14_6_a5,
     author = {Yu. V. Pokornyi},
     title = {A nonclassical de la {Vall\'ee} {Poussin} problem},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1018--1027},
     publisher = {mathdoc},
     volume = {14},
     number = {6},
     year = {1978},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1978_14_6_a5/}
}