Aldashev, S.A. (2000) “Some problems for multidimensional integro-differential equations of hyperbolic type”, Ukrains’kyi Matematychnyi Zhurnal, 52(5), pp. 590–595. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/4453 (Accessed: 16 April 2025).