1. Neotectonics, Sunnhordland Region;Anundsen,1990
2. Georadar til sand- og gruskortlægning;Berg,1983
3. 1.9-1.8 Ga old strike-slip megashears in the Baltic Shield, and their plate tectonic implications;Berthelsen,1986
4. Machine contouring using minimum curvature;Briggs;Geophysics,1974