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@article{MZM_1988_43_5_a3, author = {Yu. V. Pokornyi}, title = {An oscillation theorem of {S.\,N.~Bernshtein}}, journal = {Matemati\v{c}eskie zametki}, pages = {615--623}, publisher = {mathdoc}, volume = {43}, number = {5}, year = {1988}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1988_43_5_a3/} }
Yu. V. Pokornyi. An oscillation theorem of S.\,N.~Bernshtein. Matematičeskie zametki, Tome 43 (1988) no. 5, pp. 615-623. http://geodesic.mathdoc.fr/item/MZM_1988_43_5_a3/