@ARTICLE {28018,
author={J Brandão Faria},
doi={10.1002/etep.2627},
journal={International Transactions on Electrical Energy Systems},
title={Can the delta-wye transformation convert an ordinary passive reciprocal three-phase impedance system into another with negative resistors?},
year={2018},
month={November},
volume={28},
number={11},
pages={1-5},
ISSN={2050-7038}
}