1. Method of symmetrical co-ordinates applied to the solution of polyphase networks;Fortescue;Transactions of the AIEE,1918
2. The application of tensors to electrical engineering problems;Kron;General Electrical Review,1935
3. Circulant matrices and the theory of symmetrical components;Pipes;The Matrix and Tensor Quarterly,1966
4. On the stability analysis of symmetrical frameworks;Renton;Quarterly Journal of Mechanics and Applied Mathematics,1964
5. General theory of cyclically symmetric frames;Hussey;ASCE Journal of Structural Division,1967