1. Fundamentals of Rock Mechanics;Jaeger,1971
2. The uniaxial strength of rock material;Wijk;Geotech. Test. J.,1980
3. Point load test for the tensile strength of rock;Wijk;Geotech. Test. J.,1980
4. The stamp-load bearing strength of rock. An experimental and theoretical investigation;Wagner;Rock Mech.,1971
5. Some basic problems in percussive rock destruction;Lundberg,1971