@article{VMUMM_2009_3_a3,
     author = {M. K. Potapov and B. V. Simonov and S. Yu. Tikhonov},
     title = {Relations between moduli of smoothness in different metrics},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {17--25},
     publisher = {mathdoc},
     number = {3},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2009_3_a3/}
}