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Choi, SS; Li, HH; Vilathgamuwa, DM (2000). "Dynamic voltage restoration with minimum energy injection". IEEE Transactions on Power Systems. 15 (1): 51–57. Bibcode:2000ITPSy..15...51C. doi:10.1109/59.852100.
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Choi, SS; Li, HH; Vilathgamuwa, DM (2000). "Dynamic voltage restoration with minimum energy injection". IEEE Transactions on Power Systems. 15 (1): 51–57. Bibcode:2000ITPSy..15...51C. doi:10.1109/59.852100.