000
002730000a22001090004500
245
_a
Report of the joint working group on teleprotection
110
_a
Teleprotection CIGRE Committee
260
_b
CIGRE
_c
1969
080
_a
621.395.669
_b
T4
041
_a
EN
942
_c
BK
999
_c
119228
_d
119228