*Vertices 4
1 "南京林业大学学报" 0.0 0.0 0.0 x_fact 2.831715 y_fact 5.622977
2 "林业科学" 0.0 0.0 0.0 x_fact 5.218447 y_fact 10.760518
3 "林业科学研究" 0.0 0.0 0.0 x_fact 3.721683 y_fact 9.021036
4 "应用生态学报" 0.0 0.0 0.0 x_fact 5.339806 y_fact 74.595469
*Matrix 
0.000000 0.568535 0.539806 0.292059 
0.568535 0.000000 0.755875 0.285467 
0.539806 0.755875 0.000000 0.210810 
0.292059 0.285467 0.210810 0.000000