@article{DE_1968_4_3_a10,
     author = {V. F. Butuzov},
     title = {Asymptotics of the solution of a certain problem for a nonlinear integro-differential equation with a small parameter at the derivative},
     journal = {Differencialʹnye uravneni\^a},
     pages = {491--507},
     publisher = {mathdoc},
     volume = {4},
     number = {3},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1968_4_3_a10/}
}