*Vertices 3
1 "作物学报" 0.0 0.0 0.0 x_fact 1.141227 y_fact 24.679030
2 "中国生态农业学报" 0.0 0.0 0.0 x_fact 5.706134 y_fact 7.845934
3 "应用生态学报" 0.0 0.0 0.0 x_fact 6.134094 y_fact 67.475036
*Matrix 
0.000000 0.623921 0.000000 
0.623921 0.000000 0.710312 
0.000000 0.710312 0.000000