@article{MZM_1988_44_5_a8,
     author = {N. M. Isakov},
     title = {$C^\gamma${-Property} and approximately differentiable functions},
     journal = {Matemati\v{c}eskie zametki},
     pages = {645--659},
     publisher = {mathdoc},
     volume = {44},
     number = {5},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1988_44_5_a8/}
}