1. Measurement of Rock pressure;Mohr;Mine and Quarry Engineering,1956
2. Test Application of the Load-Relief Method for Investigating Stresses in Deep Rock;Slobodov;Ugol.,1958
3. Chakravarty P. K. The Application of the Photoelastic Technique to Problems of Rock Mechanics, Ph.D. Thesis No. 152, University of Sheffield.
4. Rock Stress Measurements Using the Trepanning Stress-Relieving Technique;Leeman;Mine and Quarry Engineering,1964
5. The Measurement of Rock Pressure in Mines;Hast,1958