1. Albert, R. D. and T. A. Welton (1950). A Simplified Theory of Neutron Attenuation and its Application to Reactor Shield Design. WAPD-15.
2. Avery, A. F., D. E. Bendali, J. Butler and K. T. Spinney (1960). Methods of Calculation for Use in the Design of Shields for Power Reactors. AERE-R3216.
3. Avery, A. F., J. Clarke and A. Hartley (1966). COMPRASH, A Preliminary User's Guide. AEEW-M648.
4. Nuclear Reactor Theory;Bell,1970