TY  - RPRT
TI  - A satellite-based digital data system for low-frequency geophysical data
AU  - S. Silverman
AU  - C. Mortensen
AU  - M. Johnston
PY  - 1989
DO  - 10.1785/bssa0790010189
UR  - https://pubs.usgs.gov/publication/70015099
ID  - 70015099
ER  -