上可嵌入图与次上可嵌入图的线性荫度
吕长青
The linear arboricity of upper-embedded graph and secondary upper-embedded graph
LYU Chang-Qing
华东师范大学学报(自然科学版) . 2015, (1): 131 -135 .  DOI: 10.3969/j.issn.1000-5641.2015.01.016