@article{IVM_1996_8_a2,
     author = {F. N. Garif'yanov},
     title = {Transformations of biorthogonal systems, and some of their applications. {II}},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {13--24},
     publisher = {mathdoc},
     number = {8},
     year = {1996},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1996_8_a2/}
}