I removed the Prod tag on the basis that he has been cited reasonably recently as an expert in cryptanalysis even though his books were published nearly 50 years ago. See: Channel4.com for example. Some of these authors who published pre-internet seem to have to meet higher hurdles than existing authors who can put their material all over the web without little problem. Gillyweed 02:49, 3 August 2007 (UTC)Reply
- There need to be sources attesting to his notability. The link doesn;t attest to his notability; it just mentions one of his books. Otto4711 05:12, 3 August 2007 (UTC)Reply
