*Vertices 3
1 "河南农业大学学报" 0.0 0.0 0.0 x_fact 7.303371 y_fact 30.898876
2 "中国烟草科学" 0.0 0.0 0.0 x_fact 7.303371 y_fact 26.404494
3 "云南农业大学学报" 0.0 0.0 0.0 x_fact 21.348315 y_fact 42.696629
*Matrix 
0.000000 0.475200 0.320022 
0.475200 0.000000 0.762702 
0.320022 0.762702 0.000000