*Vertices 4
1 "山地学报" 0.0 0.0 0.0 x_fact 0.680272 y_fact 31.632653
2 "重庆交通学院学报" 0.0 0.0 0.0 x_fact 11.564626 y_fact 30.612245
3 "中国公路学报" 0.0 0.0 0.0 x_fact 3.741497 y_fact 14.285714
4 "西南交通大学学报" 0.0 0.0 0.0 x_fact 0.340136 y_fact 23.469388
*Matrix 
0.000000 0.000000 0.000000 0.000000 
0.000000 0.000000 0.354035 0.000000 
0.000000 0.354035 0.000000 0.232744 
0.000000 0.000000 0.232744 0.000000