[/==============================================================================
    Copyright (C) 2001-2011 Joel de Guzman
    Copyright (C) 2006 Dan Marsden
    Copyright (C) 2018 Kohei Takahashi

    Use, modification and distribution is subject to the Boost Software
    License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
    http://www.boost.org/LICENSE_1_0.txt)
===============================================================================/]
[section References]

# [@http://www.boost.org/libs/iterator/doc/new-iter-concepts.html New Iterator Concepts],
  David Abrahams, Jeremy Siek, Thomas Witt, 2004-11-01.
# [@http://www.boost.org/libs/tuple The Boost Tuple Library],
  Jaakko Jarvi, 2001.
# [@http://www.boost.org/libs/spirit Spirit Parser Library],
  Joel de Guzman, 2001-2006.
# [@http://www.boost.org/libs/mpl The Boost MPL Library],
  Aleksey Gurtovoy and David Abrahams, 2002-2004.
# [@http://www.boost.org/libs/array The Boost Array Library],
  Nicolai Josuttis, 2002-2004.
# [@http://www.boost.org/libs/core/ref.html Boost.Core / Ref utility],
  Jaakko Jarvi, Peter Dimov, Douglas Gregor, Dave Abrahams, 1999-2002.
# [@http://www.boost.org/libs/hana The Boost Hana Library],
  Louis Dionne, 2017.

[endsect]

