1.
Fiol M Àngel. The Spectral Excess Theorem for Distance-Biregular Graphs. Electron. J. Combin. [Internet]. 2013Aug.16 [cited 2026Mar.15];20(3):P21. Available from: https://www.combinatorics.org/ojs/index.php/eljc/article/view/v20i3p21