The Lingua Franca font family is ultimately based on the Adobe Utopia fonts,
which were licensed in 2006 by Adobe to the TeX Users Group (TUG) under the
following license:

  Adobe Systems Incorporated ("Adobe") hereby grants to the TeX Users Group and
  its members a nonexclusive, royalty-free, perpetual license to the typeface
  software for the Utopia Regular, Utopia Italic, Utopia Bold and Utopia bold
  Italic typefaces, including Adobe Type 1 font programs for each style
  (collectively, the "Software") as set forth below.

  Adobe grants the TeX Users Group a license under its copyrights, to use,
  reproduce, display and distribute the Software for any purpose and without fee
  provided that the following copyright notice appears in all whole and partial
  copies of the Software and provided that the following trademark symbol and
  attribution appear in all unmodified copies of the Software:

    Copyright 1989, 1991 Adobe Systems Incorporated. All rights reserved.
    (alternatively, @1989, 1991 Adobe Systems Incorporated. All rights reserved.)
    Utopia(R)
    Utopia is either a registered trademark or trademark of Adobe Systems
    Incorporated in the United States and/or other countries. Used under license.

  Adobe also grants to the TeX Users Group a license to modify the Software for
  any purpose and redistribute such modifications, for any purpose and
  royalty-free, provided that the modified Software shall not use the font
  name(s) or trademark(s), in whole or in part, unless explicit written
  permission is granted by Adobe. This restriction applies to all references
  stored in the Software for identification purposes, such as the font menu name
  and other font description fields. The TeX Users Group is also permitted to
  sublicense, and grant such sublicensees the right to further sublicense, any
  or all the foregoing rights through multiple tiers of distribution. The
  licenses granted herein are granted in perpetuity and may not be terminated by
  either party unless such termination is based on a breach of the terms and
  conditions herein stated.

  Adobe retains ownership of the copyright in the Software. The TeX Users Group
  agrees that Adobe and its suppliers are the sole and exclusive owners of all
  rights, title and interest, including all copyrights, patents, trademarks,
  trade names, trade secrets and other intellectual property rights in the
  Software. No title or ownership of the Software, any copies of the Software,
  or the patent, copyright, trade secret, trademark, trade name or other
  proprietary rights contained in the Software is transferred to the TeX Users
  Group.

  The Adobe trademarks shall not be used in advertising pertaining to the
  distribution of the Software without express prior permission from Adobe. Any
  such use shall be in accordance with the Adobe trademark guidelines, available
  on the Adobe website at http://www.adobe.com/misc/pdfs/TM
  GuideforThirdPartiesFinal.pdf. If any portion of the Software is changed, it
  cannot be marketed under Adobe's trademarks unless Adobe, in its sole
  discretion, approves by a prior writing the quality of the resulting
  implementation.

  The TeX Users Group shall have the right to evaluate the Software provided by
  Adobe.

Then the TeX Users Group (TUG) gave all such rights, irrevocably and in
perpetuity, to any and all interested parties (cf. the Adobe/TUG license
agreement cited above, which is available at
http://tug.org/fonts/utopia/LICENSE-utopia.txt and included here for convenience
as licenses/utopia/utopia_LICENSE).

The Lingua Franca fonts are a modified version of the Heuristica font family
(http://code.google.com/p/evristika), which was last released in 2014 by Andrey
V. Panov under the OFL (cf. licenses/heuristica/heuristica_LICENSE).

The Heuristica fonts in turn contains glyphs from the Vntopia font family
(http://vntex.sf.net), which was released by Han The Thanh in 2006 in accordance
with the Adobe/TUG license agreement (cf. licenses/vntopia/vntopia_README).

The Greek glyphs of the Lingua Franca fonts derive from the Fourier fonts
(http://ctan.org/tex-archive/fonts/fourier-GUT), which were last released in
2005 by Michel Bovani on behalf of the GUTenberg project under the LPPL (cf.
licenses/fourier/fourier_README).

The open-box glyphs of the Lingua Franca fonts are taken from the Erewhon font
family (http://ctan.org/tex-archive/fonts/erewhon), which were released in 2014
by Michael J. Sharpe under the OFL (cf. licenses/erewhon/erewhon_LICENSE).

The modifications in the current form distributed here under the name "Lingua
Franca" are likewise released under the OFL (cf. licenses/LICENSE).
