2 citations to https://www.mathnet.ru/rus/smj7598

1. B. V. Simonov, A. A. Jumabayeva, “On relations between partial moduli of smoothness in mixed metrics”, Period Math Hung, 88:1 (2024), 38  
2. Boris V. Simonov, Ainur A. Jumabayeva, “Ulyanov inequalities for the mixed moduli of smoothness in mixed metrics”, Georgian Mathematical Journal, 2024