* [http://www.cic.ipn.mx/~sidorov/rmorph/]
* [http://cl.indiana.edu/~boltundevelopment/papers/dickinson-herring-mclc08.pdf]
* [http://learn-russian.livejournal.com/987379.html]
* [http://linux.softpedia.com/get/Programming/Libraries/pymorphy-52866.shtml]
* [https://bitbucket.org/kmike/pymorphy/downloads/]
* [https://svn.code.sf.net/p/apertium/svn/incubator/apertium-rus/]