TY  - RPRT
TI  - HYPERMAG; an interactive, 2- and 2 1/2-dimensional gravity and magnetic modeling program; version 3.5
AU  - R. W. Saltus
AU  - R.J. Blakely
PY  - 1993
DO  - 10.3133/ofr93287
UR  - https://pubs.usgs.gov/publication/ofr93287
ID  - ofr93287
ER  -