1. BS 1515. Fusion Welded Pressure Vessels for Use in the Chemical, Petroleum and Allied Industries,1965
2. BS 3915. Carbon and Low Alloy Steel Pressure Vessels for Primary Circuits of Nuclear Reactors,1965
3. BS 5500. Specification for Unfired Fusion Welded Pressure Vessels,1976
4. Experiments on spherical vessels with pad reinforced nozzles;Gill,1977
5. Analysis of pad reinforced spherical pressure vessel with radial branch;Kitching,1977