ON THE EQUIVALENCE OF THE K-FUNCTIONAL AND THE MODULUS OF CONTINUITY ON THE MORREY SPACES ArticleBurenkov V., Ghorbanalizadeh A., Sawano Y.Journal of Approximation Theory. Том 248. 2019.
ON A PROBLEM OF OPTIMAL RECOVERY AND KOLMOGOROV TYPE INEQUALITIES ON AN INTERVAL ArticleBagramyan T.E.Journal of Approximation Theory. Том 189. 2015. С. 160-169
ESTIMATES FOR CONTINUITY ENVELOPES AND APPROXIMATION NUMBERS OF BESSEL POTENTIALS ArticleGoldman M.L., Haroske D.D.Journal of Approximation Theory. Том 172. 2013. С. 58-85
FUNCTIONS OF NATURAL ORGANIC MATTER IN CHANGING ENVIRONMENT Collection of articlesSpringer Netherlands.