@article{DE_1976_12_7_a16,
     author = {R. Anvarov},
     title = {On the averaging method in {Hilbert} space for integrodifferential equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1297--1300},
     publisher = {mathdoc},
     volume = {12},
     number = {7},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1976_12_7_a16/}
}