Cite web URL http://www.gotransit.com/gts/en/docs/finalEPR/Final_EPR.pdf Title Environmental Project Report – Georgetown South Service Expansion and Union-Pearson Rail Link Source date 2009-07-30 Publisher Metrolinx Location of publication Toronto URL access date 7 August 2011 1 2 "Backgrounder 2 – Union Pearson Airlink Group's Blue22 Service" (PDF).