Y. I. Cherskii, “On the analyticity of the Fourier original and Fourier transform inside alternate angles”, Ukr. Mat. Zhurn., vol. 51, no. 5, pp. 703–707, May 1999, Accessed: Apr. 13, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/4655