Editing Turing machine (section)

===Small Turing machines===
* Rogozhin, Yurii, 1998, "[https://web.archive.org/web/20050308141040/http://www.imt.ro/Romjist/Volum1/Vol1_3/turing.htm A Universal Turing Machine with 22 States and 2 Symbols]", ''Romanian Journal of Information Science and Technology'', 1(3), 259–265, 1998. (surveys known results about small universal Turing machines)
* [[Stephen Wolfram]], 2002, [http://www.wolframscience.com/nksonline/page-707 ''A New Kind of Science''], Wolfram Media, {{isbn|1-57955-008-8}}
* Brunfiel, Geoff, [http://www.nature.com/news/2007/071024/full/news.2007.190.html Student snags maths prize], ''Nature'', October 24. 2007.
* Jim Giles (2007), [https://www.newscientist.com/article/dn12826-simplest-universal-computer-wins-student-25000.html Simplest 'universal computer' wins student $25,000], New Scientist, October 24, 2007.
* Alex Smith, [http://www.wolframscience.com/prizes/tm23/TM23Proof.pdf Universality of Wolfram's 2, 3 Turing Machine], Submission for the Wolfram 2, 3 Turing Machine Research Prize.
* Vaughan Pratt, 2007, "[http://cs.nyu.edu/pipermail/fom/2007-October/012156.html Simple Turing machines, Universality, Encodings, etc.]", FOM email list. October 29, 2007.
* Martin Davis, 2007, "[http://cs.nyu.edu/pipermail/fom/2007-October/012132.html Smallest universal machine]", and [http://cs.nyu.edu/pipermail/fom/2007-October/012145.html Definition of universal Turing machine] FOM email list. October 26–27, 2007.
* Alasdair Urquhart, 2007 "[http://cs.nyu.edu/pipermail/fom/2007-October/012140.html Smallest universal machine]", FOM email list. October 26, 2007.
* Hector Zenil (Wolfram Research), 2007 "[http://cs.nyu.edu/pipermail/fom/2007-October/012163.html smallest universal machine]", FOM email list. October 29, 2007.
* Todd Rowland, 2007, "[http://forum.wolframscience.com/showthread.php?s=&threadid=1472 Confusion on FOM]", Wolfram Science message board, October 30, 2007.
* Olivier and Marc RAYNAUD, 2014, [http://www.machinedeturing.com/ang_default.asp A programmable prototype to achieve Turing machines] {{Webarchive|url=https://web.archive.org/web/20160114140003/http://machinedeturing.com/ang_default.asp |date=2016-01-14 }}" LIMOS Laboratory of Blaise Pascal University (Clermont-Ferrand in France).