[1]
S. A. Kuzhel', “On the inverse problem for perturbations of an abstract wave equation in the Lax-Phillips scattering scheme”,
Ukr. Mat. Zhurn., vol. 52, no. 5, pp. 638–647, May 2000, Accessed: Apr. 07, 2025. [Online]. Available:
https://umj.imath.kiev.ua/index.php/umj/article/view/4458