@article{MZM_1991_50_5_a0,
     author = {B. P. Allakhverdiev},
     title = {Self-adjoint and non-self-adjoint extensions of the symmetric operator generated by an infinite {Jacobi} matrix},
     journal = {Matemati\v{c}eskie zametki},
     pages = {3--8},
     publisher = {mathdoc},
     volume = {50},
     number = {5},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1991_50_5_a0/}
}