%0 Journal Article %A Lundow, P.H. %A Markström, K. %T Broken-cycle-free subgraphs and the log-concavity conjecture for chromatic polynomials. %J Experimental mathematics %D 2006 %P 343-353 %V 15 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/EXMA_2006__15_3_223876/ %G en %F EXMA_2006__15_3_223876