History

If the Allies Had Fallen: Sixty Alternate Scenarios of World War II
Dennis E. Showalter, Harold C. Deutsch, William R. Forstchen
Skyhorse, 2012, ISBN 978-1616085469

The SHELL: A Global Tool for Calling and Chaining Procedures in the System
Louis Pouzin
April 2, 1965

PDF document

The Mars Project 1948 to 1956
A. A. Jackson
Fifty Third Symposium of the International Academy of Astronautics,
October 21 – 25, 2019, Washington, DC , United States
Paper IAC-19-E4.2.03

Here’s a 70 year old paper that’s worth a closer look:

Leo A. Goodman (1954) Some Practical Techniques in Serial Number Analysis, Journal of the American Statistical Association, 49:265, 97-112

I looked around and found some papers related to Ruggles and Brodie’s 1947 Economic Intelligence paper.

I watched the Numberphile video Cracking Enigma in 2021 and I decided I had to give that a try.

I read American Steam Locomotives, Design and Development, 1880-1960, William L. Withuhn, 2019, Indiana University Press, ISBN 978-0-253-03933-0, 451 pages.

Watching the Numberphile video The Clever Way to Count Tanks caused me to look up and read An Empirical Approach to Economic Intelligence in World War II by Richard Ruggles and Henry Brodie

I read a paper, The Influence of ULTRA on World War II by Dr Harold C. Deutsch.

It was published in 1978, in Parameters, Journal of the US Army War College. It was Approved for public release; distribution unlimited

I read a paper, The Historical Impact of Revealing the Ultra Secret by Dr Harold C. Deutsch.

It was published in 1977, in Parameters, Journal of the US Army War College. It was Approved for public release; distribution unlimited