%0 Journal Article %A Miquel Àngel Fiol %T The spectral excess theorem for distance-biregular graphs. %J The electronic journal of combinatorics %D 2013 %V 20 %N 3 %U http://geodesic.mathdoc.fr/articles/10.37236/3305/ %R 10.37236/3305 %F 10_37236_3305