@article{MZM_2000_67_1_a8,
     author = {S. N. Kudryavtsev},
     title = {The {Stechkin} problem for partial derivation operators on classes of finitely smooth functions},
     journal = {Matemati\v{c}eskie zametki},
     pages = {77--86},
     publisher = {mathdoc},
     volume = {67},
     number = {1},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2000_67_1_a8/}
}