TY  - RPRT
TI  - Airborne electromagnetic and magnetic survey of parts of the Upper Peninsula of Michigan
AU  - William D. Heran
AU  - Geoterrex Limited
PY  - 1982
DO  - 10.3133/ofr8260a
UR  - https://pubs.usgs.gov/publication/ofr8260A
ID  - ofr8260A
ER  -