http://en.wikipedia.org/wiki/Cheka

http://en.wikipedia.org/wiki/Cheka_(artist)

http://www.essortment.com/all/cheka_rvph.htm

http://www.spartacus.schoolnet.co.uk/RUScheka.htm

http://www.myspace.com/chekatheband

http://www.britannica.com/EBchecked/topic/108383/Cheka

http://www.chekalooka.com/

http://www.historyguide.org/europe/cheka.html

http://russian-ukrainian-belarus-history.suite101.com/article.cfm/the_cheka_in_russia_19171922

http://itunes.apple.com/us/artist/cheka/id64807717