00307nam a2200121Ia 4500 211209s9999 xx 000 0 und d 9.78938E+12 eng 621.317 RAO UMA RAO COMPUTER TECHNIQUES AND MODELS IN POWER SYSTEMS I K INTERNATIONAL 0 0 0 0 RIT RIT EE-U2 2021-12-31 5 2 621.317 RAO 77297 2026-01-30 12:01:30 2025-10-31 2021-12-31 BK 77297 77297