Warringten, C .
Protective relays: Their theory and practice, Vol 2 / Textual Documents C Warringten. - London : Chapman and Hall Ltd , 1985. - 438 ; .
621.317 / WAR/PR
Protective relays: Their theory and practice, Vol 2 / Textual Documents C Warringten. - London : Chapman and Hall Ltd , 1985. - 438 ; .
621.317 / WAR/PR