*Vertices 4
1 "中山大学学报" 0.0 0.0 0.0 x_fact 1.182432 y_fact 3.589527
2 "昆虫知识" 0.0 0.0 0.0 x_fact 0.760135 y_fact 11.233108
3 "中南林学院学报" 0.0 0.0 0.0 x_fact 0.337838 y_fact 11.402027
4 "应用生态学报" 0.0 0.0 0.0 x_fact 1.478041 y_fact 73.775338
*Matrix 
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0.000000 0.000000 0.000000 0.000000 
0.000000 0.000000 0.000000 0.000000