*Vertices 4
1 "安徽农业科学" 0.0 0.0 0.0 x_fact 1.913876 y_fact 38.755981
2 "福建农林大学学报" 0.0 0.0 0.0 x_fact 5.263158 y_fact 47.368421
3 "中国畜牧兽医" 0.0 0.0 0.0 x_fact 1.435407 y_fact 1.913876
4 "中国兽医科技" 0.0 0.0 0.0 x_fact 0.478469 y_fact 11.961722
*Matrix 
0.000000 0.000000 0.525531 0.000000 
0.000000 0.000000 0.560154 0.000000 
0.525531 0.560154 0.000000 0.520382 
0.000000 0.000000 0.520382 0.000000