Babenko V, BabenkoV, KovalenkoO, Parfinovych N. Some sharp Landau-Kolmogorov–Nagy-type inequalities in Sobolev spaces of multivariate functions. Ukr. Mat. Zhurn. [Internet]. 2023Oct.24 [cited 2024Nov.23];75(10):1347 -1353. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/7680