TY - JOUR AU - Lundow, P.H. AU - Markström, K. TI - Broken-cycle-free subgraphs and the log-concavity conjecture for chromatic polynomials. JO - Experimental mathematics PY - 2006 SP - 343 EP - 353 VL - 15 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/EXMA_2006__15_3_223876/ LA - en ID - EXMA_2006__15_3_223876 ER -