*Vertices 4
1 "北京林业大学学报" 0.0 0.0 0.0 x_fact 11.568123 y_fact 34.961440
2 "林业科学" 0.0 0.0 0.0 x_fact 10.025707 y_fact 45.244216
3 "林产工业" 0.0 0.0 0.0 x_fact 2.056555 y_fact 7.197943
4 "木材工业" 0.0 0.0 0.0 x_fact 11.311054 y_fact 12.596401
*Matrix 
0.000000 0.616875 0.250032 0.443800 
0.616875 0.000000 0.327579 0.583656 
0.250032 0.327579 0.000000 0.938493 
0.443800 0.583656 0.938493 0.000000