Kud’yavinaYu. V., and PlaksaS. A. 2010. “Riemann Boundary-Value Problem on an Open Rectifiable Jordan Curve. I”. Ukrains’kyi Matematychnyi Zhurnal 62 (11), 1511–1522. https://umj.imath.kiev.ua/index.php/umj/article/view/2975.