1. Determination of initial stresses by measuring the deformation around drilled holes,;Mathar,1934
2. Accurate measurement of residual stress in any steel using the centre hole method,;Bean,1976
3. American Society for Testing and Materials, “Determining residual stresses by the hole-drilling strain-gage method,” ASTM Standard test method E837-08 (2008).
4. Vishay Measurements Group Inc., “Measurement of residual stresses by the hole drilling strain-gage method,” Technical note TN-503-6 (1996).
5. Hole-Drilling Residual Stress Measurements at 75: Origins, Advances, Opportunities.;Schajer,2010