Fedorenko, A. S., Федоренко, А. С., & Федоренко, А. С. (2000). Approximation of classes $C_\infty ^{\bar \psi }$ by zygmund sumsby zygmund sums. Institute of Mathematics, NAS of Ukraine.
Chicago Style (17th ed.) CitationFedorenko, An. S., Ан. С Федоренко, and Ан. С Федоренко. Approximation of Classes $C_\infty ^{\bar \psi }$ by Zygmund Sumsby Zygmund Sums. Institute of Mathematics, NAS of Ukraine, 2000.
MLA (8th ed.) CitationFedorenko, An. S., et al. Approximation of Classes $C_\infty ^{\bar \psi }$ by Zygmund Sumsby Zygmund Sums. Institute of Mathematics, NAS of Ukraine, 2000.
Warning: These citations may not always be 100% accurate.