*Vertices 4
1 "系统工程学报" 0.0 0.0 0.0 x_fact 8.923885 y_fact 17.060367
2 "系统工程理论与实践" 0.0 0.0 0.0 x_fact 9.448819 y_fact 39.107612
3 "管理工程学报" 0.0 0.0 0.0 x_fact 6.561680 y_fact 11.023622
4 "中国管理科学" 0.0 0.0 0.0 x_fact 18.372703 y_fact 32.808399
*Matrix 
0.000000 0.851377 0.511497 0.568763 
0.851377 0.000000 0.704881 0.657368 
0.511497 0.704881 0.000000 0.759010 
0.568763 0.657368 0.759010 0.000000