%0 Journal Article %A Hong-Jun Ge %A Jack H. Koolen %T On co-edge-regular graphs with \(4\) distinct eigenvalues %J The electronic journal of combinatorics %D 2025 %V 32 %N 3 %U http://geodesic.mathdoc.fr/articles/10.37236/13958/ %R 10.37236/13958 %F 10_37236_13958