EvtushenkoA., and PrikarpatskyA. “Parametric Integro-Interpolation Method of Solving Singular Integral Equations ”. Ukrains’kyi Matematychnyi Zhurnal, Vol. 44, no. 11, Nov. 1992, pp. 1614-7, https://umj.imath.kiev.ua/index.php/umj/article/view/8265.