@article{MZM_1992_52_2_a11,
     author = {K. V. Runovskii},
     title = {Relations between periodic and nonperiodic moduli of smoothness},
     journal = {Matemati\v{c}eskie zametki},
     pages = {111--113},
     publisher = {mathdoc},
     volume = {52},
     number = {2},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1992_52_2_a11/}
}