Asanov, A., and T. Bekeshov. “On a Class of Nonclassical Linear Volterra Integral Equations of the First Kind”. Ukrains’kyi Matematychnyi Zhurnal, Vol. 72, no. 2, Feb. 2020, pp. 161-72, http://umj.imath.kiev.ua/index.php/umj/article/view/740.