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中国科学院数学与系统科学研究院期刊网
ISSN 0168-9673 CN 11-2041/O1
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1-planar Graphs without 4-cycles or 5-cycles are 5-colorable
Li-li SONG, Lei SUN
Acta Mathematicae Applicatae Sinica(English Series) . 2022, (
1
): 169 -176 . DOI: 10.1007/s10255-022-1073-9