Kumari, Komal, and Pratima Panigrahi. “Adjacency Spectrum of Power Graphs of $\mathbb{Z}_m \times \mathbb{Z}_n$”. Journal of Algebra Combinatorics Discrete Structures and Applications 13, no. 3 (September 6, 2026): 353–371. Accessed September 12, 2026. https://www.jacodesmath.com/index.php/jacodesmath/article/view/365.