TY - RPRT TI - Location of abandoned wells by magnetic surveys; acquisition and interpretation of aeromagnetic data for five test areas AU - F.C. Frischknecht AU - R. Grette AU - P. V. Raab AU - J. Meredith PY - 1985 DO - 10.3133/ofr85614a UR - https://pubs.usgs.gov/publication/ofr85614A ID - ofr85614A ER -