Morse Alphabet Cyrillic/Latin 
CIS Forces Special Q-Codes 
Russian Words in transliterated Cyrillic.  
ENIGMA Short Form Identifier  
CIS Navy Call Signs 2009. A list of intercepted Morse communications.  
PVO Air Defense Morse Networks, Profile of M21 network, by Ary Boender 
CIS Navy monthly summary February 2011 
CIS Navy monthly summary March 2011 
CIS Navy monthly summary April 2011 
CIS Navy monthly summary May 2011 
CIS Navy monthly summary June 2011  
CIS Navy monthly summary July 2011 
CIS Navy monthly summary August 2011 
CIS Navy monthly summary September 2011 
CIS Navy monthly summary October 2011 
CIS Navy monthly summary November 2011.  
CIS Navy monthly summary December 2011 
CIS Navy monthly summary January 2012