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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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A Note on
L
(2, 1)-labelling of Trees
Ming-qing ZHAI, Chang-hong LU, Jin-long SHU
Acta Mathematicae Applicatae Sinica(English Series) . 2012, (
2
): 395 -400 . DOI: 10.1007/s10255-012-0151-9