@article{DAN_1962_146_6_a5,
     author = {B. S. Pavlov},
     title = {On the spectral theory of non-selfadjoint differential operators},
     journal = {Doklady Akademii Nauk},
     pages = {1267--1270},
     publisher = {mathdoc},
     volume = {146},
     number = {6},
     year = {1962},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1962_146_6_a5/}
}