REFERENCES:

Deszcz-Pan, M., Fitterman, D.V., and Labson, V.F., 1998, Reduction of inversion errors in helicopter EM data using auxiliary information: Exploration Geophysics, v. 29, p. 142-146.

Fitterman, D.V., 1997, Analysis of errors in HEM calibration data: U.S. Geological Survey 97-742.

Fitterman, D.V., 1998, Sources of calibration errors in helicopter EM data: Exploration Geophysics, v. 29, p. 65-70.

Fitterman, D.V., and Deszcz-Pan, M., 1998, Helicopter EM mapping of saltwater intrusion in Everglades National Park, Florida: Exploration Geophysics, v. 29, p. 240-243.

Fitterman, D.V., Deszcz-Pan, M., and Stoddard, C.E., 1999, Results of time-domain electromagnetic soundings in Everglades National Park, Florida (on CD-ROM): U.S. Geological Survey 99-426.

Huang, H. and Fraser, D. C., 1999, Airborne resistivity data leveling.: Geophysics, v. 64, p. 378-385.