The diagram, as others have said, is old, here is probably the most updated version:<p><a href="http://www.thepeakeffect.com/2011/09/europes-web-of-debt-update.html" rel="nofollow">http://www.thepeakeffect.com/2011/09/europes-web-of-debt-upd...</a><p>no mention of sources though.