Sumalroj S, Worawannotai C. The Nonexistence of a Distance-Regular Graph with Intersection Array {22,16,5;1,2,20}. Electron. J. Combin. [Internet]. 2016Feb.19 [cited 2026Mar.15];23(1):P1.32. Available from: https://www.combinatorics.org/ojs/index.php/eljc/article/view/v23i1p32