泊松图P(4,1)与路Pn的笛卡尔积的交叉数
袁梓瀚 黄元秋
The crossing Number of Petersen graph P(4,1) with paths Pn
YUAN Zi-Han- Huang-Yuan-Qiu
运筹学学报 . 2011, (3): 95 -106 .