TY  - RPRT
TI  - Autonomous navigation system based on GPS and magnetometer data
AU  - Julie, Thienel K.
AU  - Richard, Harman R.
AU  - Bar-Itzhack, Itzhack Y.
PY  - 2004
UR  - https://ntrs.nasa.gov/citations/20080005178
ID  - 20080005178
ER  -