1. The stresses around a small opening in a beam subjected to bending with shear;Heller,1951
2. Elastic stresses around holes in wide-flange beams;Bower,1966
3. Ultimate strength of beams with rectangular holes;Bower,1968
4. Plastic behaviour and design of beams with web openings;Redwood,1968
5. The stresses around a rectangular opening with rounded corners in a beam sujected to bending with shear;Heller,1962