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@article{MZM_1980_27_4_a5, author = {A. L. Garkavi}, title = {Method of cyclic descent in the problem of best approximation}, journal = {Matemati\v{c}eskie zametki}, pages = {549--558}, publisher = {mathdoc}, volume = {27}, number = {4}, year = {1980}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1980_27_4_a5/} }
A. L. Garkavi. Method of cyclic descent in the problem of best approximation. Matematičeskie zametki, Tome 27 (1980) no. 4, pp. 549-558. http://geodesic.mathdoc.fr/item/MZM_1980_27_4_a5/