@article{MZM_1990_47_4_a1,
     author = {B. R. Vainberg},
     title = {Asymptotic behavior as~$t\to\infty$ of solutions of exterior mixed problems that are periodic with respect to~$t$},
     journal = {Matemati\v{c}eskie zametki},
     pages = {6--16},
     publisher = {mathdoc},
     volume = {47},
     number = {4},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1990_47_4_a1/}
}