German report on traffic analysis in the Eastern Front

An interesting file is available from site numbersoddities.

This is the report:

‘German exploitation of Russian communications through Traffic Analysis during World War II‘, Prepared under the direction of the CHIEF, ARMY SECURITY AGENCY 1 May 1946 WDGAS-U, [Declassified and approved for release by NSA on 11-30-2009 pursuant to E.O. 12958, as amended. DECLAS 58017a]

This is the same file as volume 9 of ‘European Axis Signal Intelligence in World War II’, already available from the NSA site. However this version is better for searching key words, as the text has been transcribed from the scanned pages.