@article{DE_1996_32_12_a3,
     author = {V. M. Kurbanov},
     title = {On the {Bessel} property and the unconditional basis property of systems of root vector functions of the {Dirac} operator},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1608--1617},
     publisher = {mathdoc},
     volume = {32},
     number = {12},
     year = {1996},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1996_32_12_a3/}
}