Formal language (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Formal language" in English language version.

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3books.google.com

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2st-andrews.ac.uk

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1researchgate.net

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1web.archive.org

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books.google.com (Global: 3^rd place; English: 3^rd place)

See e.g. Reghizzi, Stefano Crespi (2009). Formal Languages and Compilation. Texts in Computer Science. Springer. p. 8. Bibcode:2009flc..book.....C. ISBN 9781848820500. An alphabet is a finite set
Martin Davis (1995). "Influences of Mathematical Logic on Computer Science". In Rolf Herken (ed.). The universal Turing machine: a half-century survey. Springer. p. 290. ISBN 978-3-211-82637-9.
Bruderer, Herbert (2021). "The Global Evolution of Computer Technology". Milestones in Analog and Digital Computing. Springer. p. 1212. ISBN 978-3030409739.

core.ac.uk (Global: 1,734^th place; English: 1,312^th place)

"Thue's 1914 paper: a translation" (PDF). 28 August 2013. Archived (PDF) from the original on 30 April 2021. Retrieved 30 April 2021.

doi.org (Global: 2^nd place; English: 2^nd place)

Jäger, Gerhard; Rogers, James (19 July 2012). "Formal language theory: refining the Chomsky hierarchy". Philosophical Transactions of the Royal Society B. 367 (1598): 1956–1970. doi:10.1098/rstb.2012.0077. PMC 3367686. PMID 22688632.

harvard.edu (Global: 18^th place; English: 17^th place)

ui.adsabs.harvard.edu

See e.g. Reghizzi, Stefano Crespi (2009). Formal Languages and Compilation. Texts in Computer Science. Springer. p. 8. Bibcode:2009flc..book.....C. ISBN 9781848820500. An alphabet is a finite set

nih.gov (Global: 4^th place; English: 4^th place)

ncbi.nlm.nih.gov

Jäger, Gerhard; Rogers, James (19 July 2012). "Formal language theory: refining the Chomsky hierarchy". Philosophical Transactions of the Royal Society B. 367 (1598): 1956–1970. doi:10.1098/rstb.2012.0077. PMC 3367686. PMID 22688632.

pubmed.ncbi.nlm.nih.gov

Jäger, Gerhard; Rogers, James (19 July 2012). "Formal language theory: refining the Chomsky hierarchy". Philosophical Transactions of the Royal Society B. 367 (1598): 1956–1970. doi:10.1098/rstb.2012.0077. PMC 3367686. PMID 22688632.

quickclick.es (Global: low place; English: low place)

Torres Quevedo, Leonardo. Sobre un sistema de notaciones y símbolos destinados a facilitar la descripción de las máquinas, (pdf), pp. 25–30, Revista de Obras Públicas, 17 January 1907.

researchgate.net (Global: 120^th place; English: 125^th place)

"In the prehistory of formal language theory: Gauss Languages". January 1992. Retrieved 30 April 2021.

st-andrews.ac.uk (Global: 1,547^th place; English: 1,410^th place)

mathshistory.st-andrews.ac.uk

"Emil Leon Post". September 2001. Retrieved 30 April 2021.
"John Warner Backus". February 2016. Retrieved 30 April 2021.

stanford.edu (Global: 179^th place; English: 183^rd place)

infolab.stanford.edu

"Introduction to Automata Theory, Languages, and Computation". infolab.stanford.edu. Retrieved 23 January 2026.

plato.stanford.edu

"Gottlob Frege". 5 December 2019. Retrieved 30 April 2021.

web.archive.org (Global: 1^st place; English: 1^st place)

"Thue's 1914 paper: a translation" (PDF). 28 August 2013. Archived (PDF) from the original on 30 April 2021. Retrieved 30 April 2021.