@article{VSGTU_2015_19_1_a0,
     author = {A. A. Gimaltdinova and K. V. Kurman},
     title = {On the completeness of a pair of biorthogonally conjugated systems of functions},
     journal = {Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences},
     pages = {7--18},
     publisher = {mathdoc},
     volume = {19},
     number = {1},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VSGTU_2015_19_1_a0/}
}