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@article{MZM_2004_75_3_a16, author = {P. A. Terekhin}, title = {On {Perturbations} of the {Haar} {System}}, journal = {Matemati\v{c}eskie zametki}, pages = {466--469}, publisher = {mathdoc}, volume = {75}, number = {3}, year = {2004}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_2004_75_3_a16/} }
P. A. Terekhin. On Perturbations of the Haar System. Matematičeskie zametki, Tome 75 (2004) no. 3, pp. 466-469. http://geodesic.mathdoc.fr/item/MZM_2004_75_3_a16/