@article{DE_1974_10_1_a8,
     author = {A. A. Kerefov},
     title = {A certain boundary value problem of {Gevrey} for a parabolic equation with a discontinuity of the first kind involving a change of sign in the coefficient of the time derivative},
     journal = {Differencialʹnye uravneni\^a},
     pages = {69--77},
     publisher = {mathdoc},
     volume = {10},
     number = {1},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1974_10_1_a8/}
}