@misc{indiciae8447bf1b7e21, title = {Rationale and operational plan for a U.S. high-altitude magnetic survey}, author = {Thomas G. Hildenbrand and Mario Acuna and Robert E. Bracken and Doug Hardwick and William J. Hinze and Gordon R. Keller and Jeff Phillips and Walter Roest}, year = {2002}, doi = {10.3133/ofr02366}, url = {https://pubs.usgs.gov/publication/ofr02366}, note = {Source identifier: ofr02366} }