Serdyuk, A. S., Stepanets, O. I., Сердюк, А. С., Степанец, А. И., Сердюк, А. С., & Степанец, А. И. (1995). Lower bounds for widths of classes of convolutions of periodic functions in the metrics of $C$ and $L$. Institute of Mathematics, NAS of Ukraine.
Chicago Style (17th ed.) CitationSerdyuk, A. S., O. I. Stepanets, А. С Сердюк, А. И Степанец, А. С Сердюк, and А. И Степанец. Lower Bounds for Widths of Classes of Convolutions of Periodic Functions in the Metrics of $C$ and $L$. Institute of Mathematics, NAS of Ukraine, 1995.
MLA (8th ed.) CitationSerdyuk, A. S., et al. Lower Bounds for Widths of Classes of Convolutions of Periodic Functions in the Metrics of $C$ and $L$. Institute of Mathematics, NAS of Ukraine, 1995.
Warning: These citations may not always be 100% accurate.