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Beautify and cleanup the references section.

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Raymond Hettinger 2009-01-20 23:44:31 +00:00
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Doc/library/collections.rst
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@ -282,22 +282,29 @@ are undefined for negative inputs::
>>> e
Counter({'a': 8})
**References**:
.. seealso::
* Wikipedia entry for `Multisets <http://en.wikipedia.org/wiki/Multiset>`_
* `Bag class <http://www.gnu.org/software/smalltalk/manual-base/html_node/Bag.html>`_
in Smalltalk.
* `Bag class <http://www.gnu.org/software/smalltalk/manual-base/html_node/Bag.html>`_
in Smalltalk
* `C++ multisets <http://www.demo2s.com/Tutorial/Cpp/0380__set-multiset/Catalog0380__set-multiset.htm>`_
tutorial with standalone examples
* An early Python `Bag recipe <http://code.activestate.com/recipes/259174/>`_
for Python 2.4 and a `Counter <http://code.activestate.com/recipes/576611/>`_
comformant recipe for Python 2.5 and later.
* An early Python `Bag <http://code.activestate.com/recipes/259174/>`_ recipe
for Python 2.4 and a `Counter <http://code.activestate.com/recipes/576611/>`_
comformant recipe for Python 2.5 and later
* Wikipedia entry for `Multisets <http://en.wikipedia.org/wiki/Multiset>`_\.
* Use cases for multisets and mathematical operations on multisets.
Knuth, Donald. The Art of Computer Programming Volume II,
Section 4.6.3, Exercise 19
* `C++ multisets <http://www.demo2s.com/Tutorial/Cpp/0380__set-multiset/Catalog0380__set-multiset.htm>`_
tutorial with standalone examples.
* For use cases for multisets and mathematical operations on multisets, see
*Knuth, Donald. The Art of Computer Programming Volume II,
Section 4.6.3, Exercise 19*\.
* To enumerate all possible distinct multisets of a given size over a given
set of inputs, see the :func:`combinations_with_replacement` function in
the :ref:`itertools-recipes` for itertools::
map(Counter, combinations_with_replacement('abc', 2)) --> AA AB AC BB BC CC
:class:`deque` objects