Richard J. Hayes (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Richard J. Hayes" in English language version.

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books.google.com

Dwyer, T. Ryle (3 September 2010). Behind the Green Curtain: Ireland's Phoney Neutrality During World War II. Gill & MacMillan. p. 20. ISBN 978-0717146505. Retrieved 7 April 2015.
O'Halpin, Eunan (1 April 2003). MI5 and Ireland, 1939-1945: The Official History. Irish Academic Press. p. 76. ISBN 978-0716527541. Retrieved 7 April 2015.

nli.ie

sources.nli.ie

"Papers of Richard James Hayes (former Director of the National Library of Ireland) relating to his work on decoding German messages during World War II". National Library of Ireland. 1928.

rds.ie

sharedhistory.rds.ie

"NLI: Richard Hayes, Library Director (1940-1967) - National Library of Ireland and the Royal Dublin Society gallery". rds.ie.

ricorso.net

"Richard James Hayes: Life Work Commentary". ricorso.net.

rte.ie

"Richard Hayes, Nazi Codebreaker" (Podcast). Documentary on One. RTÉ. October 2017. Retrieved 22 October 2017.
"Oriental Collections at the Chester Beatty Library 1975". RTÉ. 25 July 1975. Retrieved 22 October 2017.

thejournal.ie

Duffy, Rónán (21 October 2017). "The story of an Irish maths genius who broke Nazi codes is finally being told". TheJournal.ie. Dublin. Retrieved 26 December 2017.