TY  - BOOK
AU  - Fortheringham A S
AU  -  O'Kelly M E
TI  - Spatial interaction models:  Formulations and appli   
T2  - Studies in operational regional science
U1  - X;89K:(B), M9 
PY  - 1989///
CY  - Dordrecht
PB  - Kluwer Academic         
KW  - Regional Economics
ER  -