img pdf

Sources

http://defensetech.org/2012/01/23/a-stealthy-worm-shaped-spying-airship-what/

http://www.wsgi.com/argus.php

http://www.unmanned.co.uk/keyword/argus-one/

http://www.unmanned.co.uk/unmanned-vehicles-news/unmanned-aerial-vehicles-uav-news/wsgi-completes-additional-flight-testing-of-argus-one-uav/

http://www.unmanned.co.uk/unmanned-vehicles-news/unmanned-aerial-vehicles-uav-news/argus-one-uav-earns-contract/

http://www.flickr.com/groups/airship/discuss/72157627101596871/

http://investing.businessweek.com/research/stocks/snapshot/snapshot.asp?ticker=WSGI:US

http://www.marketwatch.com/investing/stock/wsgi/profile