The chromatic class and the location of a graph on a closed surface
The chromatic class and the location of a graph on a closed surface
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DOI:
10.1007/bf01093595
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发表时间:
1970-06
期刊:
影响因子:
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通讯作者:
L. S. Mel'nikov
中科院分区:
文献类型:
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作者:
L. S. Mel'nikov