Blackmore, D., Prykarpatsky, A. K., Prykarpatsky, Y. A. and Samoilenko, A. M. (2019) “Theory of multidimensional Delsarte – Lions transmutation operators. II”, Ukrains’kyi Matematychnyi Zhurnal, 71(6), pp. 808-839. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/1478 (Accessed: 15April2024).