*Vertices 2
1 "中国矿业大学学报" 0.0 0.0 0.0 x_fact 13.571429 y_fact 55.000000
2 "煤炭学报" 0.0 0.0 0.0 x_fact 10.714286 y_fact 45.000000
*Matrix 
0.000000 0.580591 
0.580591 0.000000