H. V. Dedania, and Vaishali N. Goswami. “The Shilov Boundary and Peak Points of the Discrete Beurling Algebras on $\mathbb{Z}_+^2$ and $\mathbb{Z}^2$”. International Journal of Mathematics And its Applications 12, no. 2 (July 16, 2024): 133–140. Accessed July 27, 2024. https://ijmaa.in/index.php/ijmaa/article/view/1490.