Toleugazy, Y., and K.Y. Kervenev. “About Unimprovability the Embedding Theorems for Anisotropic Nikol’skii-Besov Spaces With Dominated Mixed Derivates and Mixed Metric and Anisotropic Lorentz Spaces”. Bulletin of the Karaganda University. Mathematics Series, vol. 114, no. 2, June 2024, pp. 186-9, doi:10.31489/2024m2/186-196.