*Vertices 2
1 "中山大学学报" 0.0 0.0 0.0 x_fact 4.530744 y_fact 13.754045
2 "生态学报" 0.0 0.0 0.0 x_fact 0.809061 y_fact 86.245955
*Matrix 
0.000000 0.449383 
0.449383 0.000000