*Vertices 4
1 "AcmTDatabaseSyst" 0.0 0.0 0.0 x_fact 1.954397 y_fact 12.377850
2 "AcmTInternetTechn" 0.0 0.0 0.0 x_fact 10.749186 y_fact 13.029316
3 "CommunAcm" 0.0 0.0 0.0 x_fact 3.257329 y_fact 65.146580
4 "IeeeInternetComput" 0.0 0.0 0.0 x_fact 2.280130 y_fact 9.446254
*Matrix 
0.000000 0.507792 0.225460 0.000000 
0.507792 0.000000 0.735651 0.672640 
0.225460 0.735651 0.000000 0.302918 
0.000000 0.672640 0.302918 0.000000