@inproceedings{JWSP-FD-FB:14c-cdc,
  author =	 {J. W. Simpson-Porco and F. D\"{o}rfler and F. Bullo},
  title =	 {A Solvability Condition for Reactive Power Flow},
  booktitle = {{IEEE} Conf.\ on Decision and Control},
  year =	 2015,
  address =	 {Osaka, Japan},
  month =	 dec,
  pages =	 {2013-2017},
  nopdf =	 {http://www.control.utoronto.ca/~jwsimpson/papers/2014c-conference.pdf},
  doi = {10.1109/CDC.2015.7402502},
  keywords = {Power Networks},
}