Expander graphs from Curtis-Tits groups. - Rieuwert J. Blok; Corneliu G. Hoffman; Alina Vdovina (J. Comb. Theory A, 2012)

Curtis-Tits groups of simply-laced type. - Rieuwert J. Blok; Corneliu G. Hoffman (J. Comb. Theory A, 2017)