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@article{ISU_2009_9_1_a5, author = {P. A. Terekhin}, title = {Projection description of bessel sequences}, journal = {Izvestiya of Saratov University. Mathematics. Mechanics. Informatics}, pages = {44--51}, publisher = {mathdoc}, volume = {9}, number = {1}, year = {2009}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/ISU_2009_9_1_a5/} }
P. A. Terekhin. Projection description of bessel sequences. Izvestiya of Saratov University. Mathematics. Mechanics. Informatics, Tome 9 (2009) no. 1, pp. 44-51. http://geodesic.mathdoc.fr/item/ISU_2009_9_1_a5/