1. Fault protection with digital computer;Rockfeller;IEEE Trans.,1969
2. Relaying a three phase line with a digital computer;Mann;IEEE Trans.,1971
3. High-speed distance relaying using a digital computer, Part-I. System description;Gilchrist,1972
4. Application of digital computers to power system protection;Ramamoorthy;J. Inst. Eng. (India),1972
5. Fourier series techniques applied to distance protection;McLaren;Proc. Inst. Electr. Eng.,1975