TY - RPRT TI - Geosoft eXecutables (GX's) Developed by the U.S. Geological Survey, Version 2.0, with Notes on GX Development from Fortran Code AU - Jeffrey D. Phillips PY - 2007 DO - 10.3133/ofr20071355 UR - https://pubs.usgs.gov/publication/ofr20071355 ID - ofr20071355 ER -