*Vertices 4
1 "AmPolitSciRev" 0.0 0.0 0.0 x_fact 1.737757 y_fact 21.327014
2 "AmSociolRev" 0.0 0.0 0.0 x_fact 1.421801 y_fact 38.072670
3 "JUrbanAff" 0.0 0.0 0.0 x_fact 8.372828 y_fact 19.431280
4 "UrbanAffRev" 0.0 0.0 0.0 x_fact 10.584518 y_fact 21.169036
*Matrix 
0.000000 0.000000 0.000000 0.278828 
0.000000 0.000000 0.000000 0.240236 
0.000000 0.000000 0.000000 0.774543 
0.278828 0.240236 0.774543 0.000000