000 00232nam a2200085 4500
080 _a621.316.925
_bCIG.93
245 _aMaintenance and Management of Protection Systems Working Group 34.6
700 _aC.I.G.R.E.
260 _aParis
_bCIGRE
_cNov.1993
300 _a61p
999 _c36829
_d36829