Ermolaeva, P.G. and Cherepennikov, V.B. (2008) “Polynomial quasisolutions of linear second-order differential-difference equations”, Ukrains’kyi Matematychnyi Zhurnal, 60(1), pp. 140–152. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/3144 (Accessed: 7 April 2025).