@article{DAN_1981_258_1_a4,
     author = {F. G. Maksudov and O. A. Veliev},
     title = {Nonselfadjoint differential operators in the space of vector-valued functions with periodic coefficients},
     journal = {Doklady Akademii Nauk},
     pages = {26--30},
     publisher = {mathdoc},
     volume = {258},
     number = {1},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1981_258_1_a4/}
}