@article{TRSPY_2010_269_a23,
     author = {A. A. Shkalikov},
     title = {On the basis property of root vectors of a~perturbed self-adjoint operator},
     journal = {Informatics and Automation},
     pages = {290--303},
     publisher = {mathdoc},
     volume = {269},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_2010_269_a23/}
}