1. Proceedings of the 3rd International Symposium on Discharges and Electrical Insulation in Vacuum;Trump,1968
2. Graneau, P. “Economic assessment of a liquid nitrogen cooled cable”, Institute of Electrical and Electronics Engineers Paper No. 69, TP
3. Proceedings of the Brookhaven National Laboratory Summer Study on Superconducting Devices and Accelerators;Wipf,1968