License and Copyright
---------------------

Copyright (c) 1996-2015, Power System Engineering Research Center (PSERC)
  
Copyright (c) 2010-2015 Richard Lincoln  

The code in PYPOWER is distributed under the 3-clause BSD license
below. The PYPOWER case files distributed with PYPOWER are not covered
by the BSD license. In most cases, the data has either been included
with permission or has been converted from data available from a
public source.

While not required by the terms of the license, we do request that
publications derived from the use of MATPOWER explicitly acknowledge
that fact by citing:

    R. D. Zimmerman, C. E. Murillo-Sanchez, and R. J. Thomas, "MATPOWER:
    Steady-State Operations, Planning and Analysis Tools for Power Systems
    Research and Education," Power Systems, IEEE Transactions on, vol. 26,
    no. 1, pp. 12–19, Feb. 2011.
