CS ciphers used in WWII (1939-1945)
Mr. Jozef M. Kollár’s series of articles about the Czech codes, used in WWII, from past e-zine Crypto-World. They are:
Another article about czechoslovakian cipher TTS from WWII, published in Crypto-world 1-3/2014:
In slovak: Predbežnú verziu prednášky J.M. Kollára o ČS šifrách v WW2 nájdete tu prezentacia01_Kollar.pdf
Professor Otokar Grosek and M. Vojvoda, P. Zajac's Powerpoint presentation about CS ciphers used in WWII, with detailed explanation of German SIGINT solution and pictures from Mr. Jiri Janecek's books.