*Vertices 4
1 "中国安全科学学报" 0.0 0.0 0.0 x_fact 4.545455 y_fact 25.852273
2 "辽宁工程技术大学学报" 0.0 0.0 0.0 x_fact 21.306818 y_fact 30.113636
3 "中国矿业大学学报" 0.0 0.0 0.0 x_fact 6.534091 y_fact 23.011364
4 "煤炭学报" 0.0 0.0 0.0 x_fact 7.386364 y_fact 21.022727
*Matrix 
0.000000 0.606461 0.000000 0.000000 
0.606461 0.000000 0.537032 0.731045 
0.000000 0.537032 0.000000 0.575109 
0.000000 0.731045 0.575109 0.000000