1. The splines and ellipses of R13;Allen;Cadence,1995
2. Machine contouring using minimum curvature;Briggs;Geophysics,1974
3. GSC Fieldlog v3.0: Software for computer-aided geological field mapping;Brodaric,1997
4. Layered Intrusions,1996
5. Dip and strike measured systematically on digitized three-dimensional geological maps;Chorowicz;Photogrammetric Engineering and Remote Sensing,1991