中国科学院数学与系统科学研究院期刊网
AMS
Fractional Coloring Planar Graphs under Steinberg-type Conditions
Xiao Lan HU, Jia Ao LI
Acta Mathematica Sinica . 2023, (5): 904 -922 .  DOI: 10.1007/s10114-022-1085-7