TY  - BOOK
AU  - Rycroft, M.
TI  - Satellite Navigation Systems: policy, commercial and technical interaction
SN  - 1402016786
U1  - 621.3825 RYC 
PY  - 2003///
CY  - Boston
PB  - Kluwer Academic Publishers
KW  - Satellite navigation systems
KW  - Global positioning systems
N1  - Contents:
1. A Brief Summary of Four Ke
ER  -