1. Daniel, I.M., 1970. Photoelastic analysis of stresses around oblique holes. Experimental Mechanics, Vol. 10, No. 11, November 1970.
2. Ray, C.A., Jr, 1971. Elastic-plastic strain concentrations produced by various skew holes in a flat plate under uniaxial tension. Experimental Mechanics, March 1971.
3. Stanley, P., Day, B.V., 1973. Stress concentrations at offset-oblique holes in thick-walled cylindrical pressure vessels. In: ASME Paper No. I-12, Second International Conference on Pressure Vessel Technology, San Antonio, Texas, 1973.
4. Yu, J.C.M., Shaw, W.A., 1973. Stress distribution of a cylindrical shell non-radially penetrated into a spherical pressure vessel. In: ASME Paper No. I-9, Second International Conference on Pressure Vessel Technology, San Antonio, Texas, 1973.