TY  - BOOK
AU  - Parkinson, B.W Spilker, J.J
TI  - Global positioning system theory and applications progress in astronautics and aeronautics
SN  - 1-56347-106-X
U1  - 629.1 GLO'P 
PY  - 1996///
CY  - USA
PB  - AIAA
ER  -