If you use this program to do productive scientific research that
leads to publication, we ask that you acknowledge use of the
program by citing the following papers in your publication:

    * Chenyang Shi, "xINTERPDF: a graphical use interface for
      analyzing intermolecular pair distribution functions of
      organic compounds from X-ray total scattering data",
      J. Appl. Crystallogr. 51, 1498-1499 (2018).

    * Pavol Juhás, Christopher L. Farrow, Xiaohao Yang, Kevin R. Knox,
      and Simon J. L. Billinge, "Complex modeling: a strategy and software
      program for combining multiple information sources to solve ill posed
      structure and nanostructure inverse problems",
      Acta Crystallogr. A, 71, 562-568, 2015.

Copyright (c) 2009-2011, University of Tennessee
Copyright (c) 1989, 1991 Free Software Foundation, Inc.
Copyright (c) 2014, Australian Synchrotron Research Program Inc., ("ASRP")
Copyright (c) 2006-2007, Board of Trustees of Michigan State University
Copyright (c) 2008-2012, The Trustees of Columbia University in the City
    of New York
Copyright (c) 2014-2016, Brookhaven Science Associates, Brookhaven National
    Laboratory
Copyright (c) 2014-2018, AbbVie Inc.

For more information please visit the diffpy web-page at
    http://www.diffpy.org
or email Chenyang Shi at cs3000@columbia.edu, or Prof. Simon
Billinge at sb2896@columbia.edu.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:

  * Redistributions of source code must retain the above copyright
    notice, this list of conditions and the following disclaimer.

  * Redistributions in binary form must reproduce the above copyright
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.

  * Neither the name of the copyright holder nor the names of its
    contributors may be used to endorse or promote products derived from
    this software without specific prior written permission.

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