Graphical Solution for Travelling Wave Problems

Bewley L. V. Travelling Waves on Transmission Systems. John Wiley, New York and Chapman & Hall Ltd., London (1951)

Boehne P. Graphical analysis with special application to the switching oflines and cables – Traveling wave protection problem. Trans. A.I.E.E., 920 (1954)

Central Station Engineers of the Westinghouse Electric Corporation, Pennsylvania. Electrical Transmission & Distribution Reference Book