References
- Anonymous. 2009. SOV - M125 Fialka (in Czech). http://forum.valka.cz/viewtopic.php/t/81773.
- Blair, M. J. 2011. Fialka. http://www.nf6x.net/tag/fialka/.
- Drobick, J. 1995. SAS und Chiffrierdienst der DDR. http://scz.bplaced.net/old.html
- Gillogly, J. J. 1995. Ciphertext-Only Cryptanalysis of Enigma, Cryptologia, 19(4):405–413.
- Kahn, D. December 1996. The Codebreakers: The Comprehensive History of Secret Communication from Ancient Times to the Internet. New York: Scribner, rev sub edition.
- Kahn, D. 1998. Soviet Comint in the Cold War, Cryptologia, 22(1):1–24.
- Knížek, J. 10 2007. From History of Czechoslovak Cryptography, Part III., Memories of Army Operator (in Czech), Crypto-World, 10–23.
- Knížek, J. 5 2011. Reader's Memories and Remarks on Topic of Fialka M-125 (in Czech), Crypto-World, 14.
- Konheim, A. G. 1981. Cryptography: A Primer, 1st ed. New York: John Wiley & Sons, Inc.
- Lord, B. 1998. Russian Fialka. http://www.ilord.com/fialka.html
- Miller, A. R. 1995. The Cryptographic Mathematics of Enigma, Cryptologia, 19(1):65–80.
- Perera, T. and D. Hamer. 2005. General Introduction: Russian Cold War Era M-125 and M-125–3MN Fialka Cipher Machines. http://enigmamuseum.com/mfialka.htm
- Rejewski, M. 1982. Mathematical Solution of the Enigma Cipher, Cryptologia, 6(1):1–18.
- Reuvers, P. and M. Simons. 2009. Fialka M-125: Detailed Description of the Russian Fialka Cipher Machines. Eindhoven: PAHJ Reuvers & MJH Simons.
- Sebag-Montefiore, H. 2012. Enigma: The Battle for the Code. Brno: B4U, Czech edition.
- Williams, H. 2000. Applying Statistical Language Recognition Techniques in the Ciphertext-Only Cryptanalysis of Enigma, Cryptologia, 24(1):4–17.