Woodall, D. R. Zeros of chromatic polynomials. (English) Zbl 0357.05044 Comb. Surv., Proc. 6th Br. comb. Conf., 199-223 (1977). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 22 Documents MSC: 05C15 Coloring of graphs and hypergraphs 05C10 Planar graphs; geometric and topological aspects of graph theory PDF BibTeX XML