1. Sobolev Spaces;Adams,2003
2. Inequalities for fractional derivatives on the half-line;Arestov,1979
3. Approximation of unbounded operators by bounded operators and related extremal problems;Arestov;Russ. Math. Surv.,1996
4. On multivariate Ostrowski type inequalities and their applications;Babenko;Math. Inequal. Appl.,2020
5. On sharp Kolmogorov type inequalities for bivariate functions;Babenko;Dopovidi NAN Ukr.,2000