TY - RPRT TI - Developments and applications of modern airborne electromagnetic surveys : proceedings of the U.S. Geological Survey Workshop on Developments and Applications of Modern Airborne Electromagnetic Surveys, October 7-9, 1987 AU - David V. Fitterman PY - 1990 DO - 10.3133/b1925 UR - https://pubs.usgs.gov/publication/b1925 ID - b1925 ER -