Cooper, Joshua, and Zhibin Du. “Note on the Spectra of Steiner Distance Hypermatrices”. The Electronic Journal of Combinatorics 31, no. 3 (July 12, 2024): P3.4. Accessed March 27, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v31i3p4.