1. “Fault Protection with a Digital Computer,”;Rockefeller;IEEE Transactions on Power Apparatus and Systems,1969
2. “Digital Calculation of Impedance for Transmission Mine Protection,”;Mann;IEEE Transactions on Power Apparatus and Systems,1971
3. R. Poncelet, “The Use of Digital Computers for Network Protection,” CIGRE Paper No. 32–08, August 1972.
4. B. J. Cory and J. F. Moont, “Application of Digital Computers to Busbar Protection,” IEE Conference on the Application of Computers to Power System Protection and Metering, Bournemouth, England, May 1970, pp 201–209.
5. “A Proposed Method of Harmonic Restraint Differential Protection of Transformers by Digital Computers,”;Sykes;IEEE Transactions on Power Apparatus and Systems,1972