@article{DE_1982_18_4_a26,
     author = {B. I. Sokil and A. F. Barvinsky},
     title = {The asymptotic method and periodic {Ateb} functions in the investigation of some nonlinear wave equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {718--721},
     publisher = {mathdoc},
     volume = {18},
     number = {4},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1982_18_4_a26/}
}