1Holger Kessler, Stephen Mathers. The Past, Present and Future of 3d Geology in Bgs[J]. Journal Open U- niversity Geological Society,2006,27(2):13-15.
2Richard C, Berg, Stephen J. et al. Synopsis of Cur- rent Three-dimensional Geological Mapping and Mod- eling in Geological Survey Organizations I-R/OLd. Champaign: Illinois State Geological Survey. [2014- 05-06] http://library, isgs. uiuc. edu/Pubs/pdfs/eircu- lars/c578, pdf.
