Sukhorolskyi, M. A. “Bessel Functions of Two Complex Mutually Conjugated Variables and their
application in Boundary-Value Problems of Mathematical Physics”. *Ukrains’kyi Matematychnyi Zhurnal* 69, no. 3 (March 25, 2017): 381-396. Accessed October 6, 2022. http://umj.imath.kiev.ua/index.php/umj/article/view/1703.