http://m.computerworld.com/s/article/9233831/Malware_uses_Google_Docs_as_proxy_to_command_and_control_server?taxonomyId=17

http://www.modbus.org/member_docs/PR-Belden-Helps-Schneider-Electric.pdf

http://www.skatingonstilts.com/skating-on-stilts/2012/11/cyberwar-and-industrial-controls-a-conversation-with-ralph-langner.html

http://www.isssource.com/address-scada-vulnerabilities-now/

http://www.isssource.com/lockheed-attacks-up-dramatically/