TY - JOUR AU - BOJAN MOHAR AU - HEHUI WU TI - DICHROMATIC NUMBER AND FRACTIONAL CHROMATIC NUMBER JO - Forum of Mathematics, Sigma PY - 2016 VL - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.1017/fms.2016.28/ DO - 10.1017/fms.2016.28 LA - en ID - 10_1017_fms_2016_28 ER -