@article{DAN_1980_252_1_a2,
     author = {S. K. Bloshanskaya},
     title = {On the basis property of the system of eigenfunctions and associated functions of a nonselfadjoint differential operator},
     journal = {Doklady Akademii Nauk},
     pages = {17--19},
     publisher = {mathdoc},
     volume = {252},
     number = {1},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1980_252_1_a2/}
}