1. Internal deformation due to shear and tensile faults in a half-space;Okada;Bulletin of the Seismological Society of America,1992
2. Jeffrey RG Mills KW Hydraulic fracturing applied to inducing longwall coal mine goaf falls Pacific Rocks 2000 Rotterdam 2000
3. Jeffrey RG Zhang X Settari A Mills KW Detournay E Hydraulic fracturing to induce caving: fracture model development and comparison to field data 2001
4. Haimson B Fairhurst C In-situ stress determination at great depth by means of hydraulic fracturing 1969