Horodets'kyi, V.V., and O.V. Martynyuk. “Evolution Pseudodifferential Equations With Analytic Symbols in Spaces of $S$ Type”. Carpathian Mathematical Publications 13, no. 1 (June 28, 2021): 160–179. Accessed November 21, 2024. https://journals.pnu.edu.ua/index.php/cmp/article/view/4359.