@article{SM_1968_5_4_a7,
     author = {Yu. A. Dubinskii},
     title = {Periodic solutions of elliptico-parabolic equations},
     journal = {Sbornik. Mathematics},
     pages = {585--598},
     publisher = {mathdoc},
     volume = {5},
     number = {4},
     year = {1968},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1968_5_4_a7/}
}