@article{DAN_1976_230_4_a3,
     author = {E. P. Dolzhenko},
     title = {On the differentiability of functions that can be approximated sufficiently well in the {Hausdorff} or uniform metric},
     journal = {Doklady Akademii Nauk},
     pages = {765--768},
     publisher = {mathdoc},
     volume = {230},
     number = {4},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1976_230_4_a3/}
}