Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Huang Yu and Iwamoto Shinichi,On Detection of Possible Voltage Collapse Buses in Stressed Power Systems Based on Information of Multiple Solutions in Load Flow Calculations,IEEJ Transactions on Power and Energy,03854213,The Institute of Electrical Engineers of Japan,1996,116,6,654-661,https://cir.nii.ac.jp/crid/1390001204605335296,https://doi.org/10.1541/ieejpes1990.116.6_654