• Cipher Bureau (Poland) (category Signals intelligence agencies)
    In 1967 the Polish military historian Władysław Kozaczuk, in his book Bitwa o tajemnice (The Battle for Secrets), first revealed that the German Enigma...
    57 KB (6,907 words) - 07:04, 12 September 2024
  • Thumbnail for Marian Rejewski
    (1): 19–25, doi:10.1080/0161-118291856740 Kozaczuk, Władysław (1967), Bitwa o tajemnice: Służby wywiadowcze Polski i Rzeszy Niemieckiej 1922–1939 [Secret...
    73 KB (8,843 words) - 06:03, 17 August 2024