2 citations to https://www.mathnet.ru/eng/vmumm945
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M. K. Potapov, B. V. Simonov, “Interrelations between mixed moduli of smoothness in metrics of $L_p$ and $L_\infty$”, Moscow University Mathematics Bulletin, 72:3 (2017), 107–120
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M. K. Potapov, B. V. Simonov, “Interrelations between full moduli of smoothness in the metrics of $L_1$ è $L_\infty$”, Moscow University Mathematics Bulletin, 71:1 (2016), 15–22