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@article{IVM_1996_6_a1, author = {F. N. Garif'yanov}, title = {Transformations of biorthogonal systems, and some of their applications. {I.}}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {5--16}, publisher = {mathdoc}, number = {6}, year = {1996}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1996_6_a1/} }
F. N. Garif'yanov. Transformations of biorthogonal systems, and some of their applications. I.. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 6 (1996), pp. 5-16. http://geodesic.mathdoc.fr/item/IVM_1996_6_a1/