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@article{MZM_1991_49_2_a5, author = {A. I. Zvyagintsev}, title = {Extremal problem of the norm of an intermediate derivative}, journal = {Matemati\v{c}eskie zametki}, pages = {45--54}, publisher = {mathdoc}, volume = {49}, number = {2}, year = {1991}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1991_49_2_a5/} }
A. I. Zvyagintsev. Extremal problem of the norm of an intermediate derivative. Matematičeskie zametki, Tome 49 (1991) no. 2, pp. 45-54. http://geodesic.mathdoc.fr/item/MZM_1991_49_2_a5/