TY  - RPRT
TI  - Integrated GPS, range-range and hyperbolic LORAN C marine navigation system for use on IBM AT or compatible microcomputer
AU  - John T. Gann
PY  - 1988
DO  - 10.3133/ofr88562
UR  - https://pubs.usgs.gov/publication/ofr88562
ID  - ofr88562
ER  -