@article{VMUMM_1985_4_a8,
     author = {V. A. Kondratiev and O. A. Oleinik},
     title = {Time-periodic solutions of a second-order parabolic equation in exterior domains},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {38--47},
     publisher = {mathdoc},
     number = {4},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1985_4_a8/}
}