TY  - BOOK
AU  - ROY John R
TI  - Spatial interaction modelling:  A regional science context   
T2  - Advances in Spatial Science
SN  - 3540205284
U1  - U672:(B), P4 
PY  - 2004///
CY  - Berlin
PB  - Springer-Verlag          
KW  - Geography
N1  - Bibliography P 229-235
ER  -