FWIW, here it is:
Krasnoarmeyets,
I'm not quite sure what part of the information I posted was interesting to you, but in answer to your T-64 awareness question, I believe I first started seeing usable tech intel on the T-64 in the early 1980s. This was in a DIA S/NOFORN/WNINTEL (SECRET/NO FOREIGN/WARNING: INTELLIGENCE SOURCES & METHODS INVOLVED) publication. I never saw a CIA study of this tank, but have since seen one in the CIA FOIA Reading room, where I commend this declassified marvel to your attention. Regrettably, the FOIA Reading Room has been made pretty user hostile recently, but there was, and may still be, a CIA study specifically on the T-64, a study I never saw in my entire 11+ years as a Soviet Threat Analyst.
http://www.foia.cia.gov/sites/default/files/DOC_0000624298.pdf
Regards,
John Kettler