TY  - RPRT
TI  - Active tensor magnetic gradiometer system final report for Project MM–1514
AU  - David V. Smith
AU  - Jeffrey D. Phillips
AU  - S. Raymond Hutton
PY  - 2014
DO  - 10.3133/ofr20131228
UR  - https://pubs.usgs.gov/publication/ofr20131228
ID  - ofr20131228
ER  -