TY  - BOOK
AU  - Kaplan,Elliott D.
TI  - Understanding GPS: principles and applications 
T2  - The Artech House mobile communications series
SN  - 0890067937 (alk. paper)
AV  - G109.5 
PY  - 1996///
CY  - Boston
PB  - Artech House
KW  - Global Positioning System
N1  - Includes index; Includes bibliographical references
ER  -