@article{PFMT_2010_3_a6,
     author = {G. N. Kazimirov},
     title = {Equivalent structural characteristic of the given generalized modulus of smoothness},
     journal = {Problemy fiziki, matematiki i tehniki},
     pages = {49--51},
     publisher = {mathdoc},
     number = {3},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PFMT_2010_3_a6/}
}