Kolomoitsev, Yu. S. “Generalization of One Sufficient Condition for Fourier Multipliers”. Ukrains’kyi Matematychnyi Zhurnal 64, no. 10 (October 25, 2012): 1373-1380. Accessed April 24, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/2665.