Historical Cryptology
George Lasry, Ingo Niebel, Torbjörn Andersson (2020). Deciphering German diplomatic and naval attaché messages from 1900-1915. Cryptologia, published online 9.7.2020, https://doi.org/10.1080/01611194.2020.1755914.
Ingo Niebel (2018): Learning Cryptanalysis the Hard Way: A Study on German Culture of Cryptology in Wolrd War I. In: Proceedings of the 1st International Conference on Historical Cryptology. NEALT Proceedings Series 34: 65-75.
George Lasry, Ingo Niebel, Nils Kopal, Arno Wacker (2016): Deciphering ADFGVX messages from the Eastern Front of World War I, Cryptologia, DOI: 10.1080/01611194.2016.1169461.
Luis Alberto Benthin Sanguino, Gregor Leander, Christof Paar, Bernhard Esslinger, Ingo Niebel (2015): Analyzing the Spanish strip cipher by combining combinatorial and statistical methods, Cryptologia, DOI: 10.1080/01611194.2015.1050332.