1. High-phase order transmission;Barthold;CIGRE Study Committee No. 31 Rep.,1972
2. Transmission systems feasibility;Guyker;Proc. Am. Power Conf.,1978
3. High phase order transmission — a feasibility analysis: Part I — Steady state considerations;Stewart;IEEE Trans.,1978
4. High phase order transmission — a feasibility analysis: Part II — Overvoltages and insulation requirements;Stewart;IEEE Trans.,1978
5. High phase order — ready for application;Stewart;IEEE Trans.,1982