TY  - BOOK
AU  - Wellenhof , Bernhard Hafmann
AU  - Lichtenegger , Herbert
AU  - Wasle , Elmar
TI  - GNSS - Global navigation satellite systems: gps ,glonass, galileo and more
SN  - 9783211730126
U1  - 910.285 
PY  - 2008///
CY  - New York
PB  - Springer
ER  -