000 00362nam a2200085 4500
080 _a
_b
245 _aIEC: 61850-7-4-20 2010; Communication networks and systems for power utility automation - Part 7-4: Basic communication structure - Compatible logical node classes and data object classes
100 _aInternational Electrotechnical Commission
250 _a2.0
260 _aGeneva
_bIEC
_c2010
300 _a182
999 _c39728
_d39728