TY - RPRT TI - Aeromagnetic survey over U.S. to advance geomagnetic research AU - T.G. Hildenbrand AU - R.J. Blakely AU - W. J. Hinze AU - Gordon R. Keller AU - R.A. Langel AU - M. Nabighian AU - W. Roest PY - 2011 DO - 10.1029/96eo00187 UR - https://pubs.usgs.gov/publication/70018976 ID - 70018976 ER -