1. Determination of the stress in rock unaffected by boreholes or drifts, from measured strains or deformations;Hiramatsu;IJRMMS,1968
2. Methods of determining in situ rock stresses at great depth;Fairhurst,1968
3. A study of inclined hydraulic fractures;Daneshy;SPE Journal,1973
4. Fracturing of a deviated well;Yew,1988
5. Fracturing deviated boreholes: An experimental approach;Baumgärtner,1989