@article{DAN_1961_141_3_a10,
     author = {Yu. A. Palant},
     title = {A test for the completeness of a system of eignevectors and adjoint vectors of a polynomial bundle of operators},
     journal = {Doklady Akademii Nauk},
     pages = {558--560},
     publisher = {mathdoc},
     volume = {141},
     number = {3},
     year = {1961},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1961_141_3_a10/}
}