@article{SMBlog:2018-08-24,
	author = {Steven M. Bellovin},
	title = {German Cryptanalytic Attacks on the British World War {II} ``{TYPEX}'' Machine},
	date = {2018-08-24},
	year = {2018},
	month = {August 24,},
	journal = {SMBlog: Steve Bellovin's Blog (blog)},
	url = {https://www.cs.columbia.edu/~smb/blog/2018-08/2018-08-24.html},
}