The 224 non-chordal graphs on less than 10 vertices whose chromatic polynomials have no complex roots

Ottavio M. D Antona, Carlo Mereghetti, Fabio Zamparini. The 224 non-chordal graphs on less than 10 vertices whose chromatic polynomials have no complex roots. Discrete Mathematics, 226(1-3):387-396, 2001. [doi]

Abstract

Abstract is missing.