@article{MZM_2013_93_2_a8,
     author = {G. G. Oniani},
     title = {Note on {Besicovitch's} {Theorem} on the {Possible} {Values} of {Upper} and {Lower} {Derivatives}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {246--251},
     publisher = {mathdoc},
     volume = {93},
     number = {2},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2013_93_2_a8/}
}