@article{DE_1969_5_12_a8,
     author = {I. I. Shmulev},
     title = {Almost periodic and periodic solutions of the problem with oblique derivative for parabolic equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {2225--2236},
     publisher = {mathdoc},
     volume = {5},
     number = {12},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1969_5_12_a8/}
}