COPYRIGHT.txt

A significant fraction of the code in the mrc_simple directory comes from IMOD.
Here is the copyright notice that comes with IMOD.

IMOD Version 4.9.0                     Copyright Notice and Credits
--------------------------------------------------------------------------
Except as noted, ALL SOFTWARE LISTED IS Copyright (C) 1994-2017
the Regents of the University of Colorado.

All portions of IMOD, except as noted below, are open source under the
General Public License (GPL) version 2.0.  A copy of this license is in the
file GPL.txt.  (All license files referred to here are in the directory
'licenses' in the binary distribution or 'dist' in the source code.)  The 
libraries written entirely in C/C++ are released under the Lesser GPL (see
LGPL.txt).  Software may be modified and redistributed under the terms of
these licenses.  The source can be found at
http://bio3d.colorado.edu/imod/nightlyBuild
and
http://bio3d.colorado.edu/imod/openSource

THIS SOFTWARE AND/OR DOCUMENTATION IS PROVIDED WITH NO WARRANTY,
EXPRESS OR IMPLIED, INCLUDING, WITHOUT LIMITATION, WARRANTY OF
MERCHANTABILITY AND WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.

Programs were written by David Mastronarde, James Kremer, Rick
Gaudette, Sue Held, Quanren Xiong, and John Heumann at the University 
of Colorado, some based on work and libraries from the MRC.  We thank David
Agard and Hans Chen for the original MRC source code, Wah Chiu for a Unix
version of low-level MRC file routines used in the FORTRAN parts, and Chuck
Robertson for much work on the port to Linux.

This work was supported in the past by NIH P41 grants from NCRR and NIGMS to
J. Richard McIntosh and Andreas Hoenger; and by NIBIB grant EB005027 to 
David Mastronarde.

Contact:  mast at colorado dot edu
    www:  http://bio3d.colorado.edu/imod/index.html
    University of Colorado, Dept. of MCD Biology, 347 UCB, Boulder, CO 80309

---- NOTE: THE ORIGINAL COPYRIGHT.txt FILE CONTAINS A LONG LIST OF
----       CREDITS TO AUTHORS AND INSTITUTIONS WHO CONTRIBUTED CODE FOR
----       IMOD FEATURES THAT WERE NOT USED IN THIS LIBRARY ("mrc_simple").
----       This is not relevant and was omitted.