LackeyC. H. W., Fault Calculations. Oliver & Boyd, Edinburgh (1951)
2.
EdgleyR. K., Design and application of protective equipment for electrical power systems. Reyrolle Reprint102 (April 1961)
3.
EllisN. S., Distance protection of feeders. Reyrolle Pamphlet1301 (November 1960)
4.
LeyburnH. and LackeyC. H. W., The protection of electrical power systems; a critical review of present-day practice and recent progress. Reyrolle Pamphlet1265 (October 1951)
5.
PearceP., The protection of high-voltage transmission lines by distance measurement. Reyrolle Reprint68 (May 1957)