1. Fault and Joint Development in Brittle and Semi-Brittle Rock;Price,1966
2. Sources of errors in joint surveys;Terzaghi;Geotechnique,1965
3. Discontinuity spacings in rock;Priest;Int. J. Rock Mech. Min. Sci. & Geomech. Abstr.,1976
4. Random distribution of lines in a plane;Goudsmit;Rev. mod. Phys.,1945
5. Random polygons determined by random lines in a plane;Miles,1964