@article{MZM_2012_91_2_a9,
     author = {P. A. Terekhin},
     title = {On {Bessel} {Systems} in a {Banach} {Space}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {285--296},
     publisher = {mathdoc},
     volume = {91},
     number = {2},
     year = {2012},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2012_91_2_a9/}
}