@article{VMUMM_2018_6_a1,
     author = {M. K. Potapov and B. V. Simonov},
     title = {Strengthened {Ul'yanov's} inequality for complete moduli of smoothness of functions from spaces with mixed metrics},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {8--20},
     publisher = {mathdoc},
     number = {6},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2018_6_a1/}
}