Ultra (Portuguese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Ultra" in Portuguese language version.

Last modified: 21:01:57, 21 October 2021 (UTC)

Ref.Un. Ref.Website

Global rank Portuguese rank

33books.google.com

3^rd place

7^th place

11theguardian.com

16^th place

23^rd place

11bletchleypark.org.uk

low place

low place

bletchleypark.org.uk (Global: low place; Portuguese: low place)

«Bletchley Park Welcomes 2015'S 200,000th Visitor». Bletchley Park. 26 de agosto de 2015. Consultado em 25 de janeiro de 2017

books.google.com (Global: 3^rd place; Portuguese: 7^th place)

Budiansky, Stephen (27 de junho de 2018). Battle of Wits: The Complete Story of Codebreaking in World War II. [S.l.]: Simon and Schuster. ISBN 9780684859323 – via Google Books
Smith, Michael (31 de outubro de 2011). The Secrets of Station X: How the Bletchley Park codebreakers helped win the war. [S.l.]: Biteback Publishing. ISBN 9781849542623 – via Google Books
Richelson, Jeffery T. (1997). A Century of Spies: Intelligence in the Twentieth Century. New York: Oxford University Press. p. 296. ISBN 9780195113907

theguardian.com (Global: 16^th place; Portuguese: 23^rd place)

Cox, David (28 de novembro de 2014). «The Imitation Game: how Alan Turing played dumb to fool US intelligence - David Cox». The Guardian