Chaichenko , S. O. ., Shidlich, A. L., & Shulyk, T. V. . (2022). Direct and inverse approximation theorems in the Besicovitch – Musielak – Orlicz spaces of almost periodic functions . Ukrains’kyi Matematychnyi Zhurnal, 74(5), 701-716. https://doi.org/10.37863/umzh.v74i5.7045