System taryf gwarantowanych dla energii wiatrowej w Ontario niezgodny z zasadami WTO
http://www.renewableenergyworld.com/rea/news/article/2012/12/ontario-clean-energy-subsidies-break-rules-wto-panel-says?cmpid=WNL-Friday-December21-2012
http://www.sunwindenergy.com/news/ontario-strengthens-small-fit-program
http://www.sunwindenergy.com/news/wto-declares-ontarios-50-rule-illegal