TY  - BOOK
AU  - Kaplan, Elliste D
TI  - Understanding gps principles and applications
SN  - 0-89006-793-7
U1  - 623.893 UND'K 
PY  - 1996///
CY  - BOSTON
PB  - ARTECH HOUSE
KW  - ARTIFICIAL SATELLITIES IN NAVIGATION GLOBAL POSITIONING SYSTEMS
ER  -