PlaksaS. A. “Singular Integral Operators in Spaces of Oscillating Functions on a Rectifiable Curve”. Ukrains’kyi Matematychnyi Zhurnal 55, no. 9 (September 25, 2003): 1206-1217. Accessed September 1, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/3993.