John Hubbell, Dir. calgary Transit, Dave Colquhoun, Transit Planning Calgary Transit, 2006 Joint International Light Rail Conference, 2006 April 8-12, 20 p. « / » https://www.calgarytransit.com/content/dam/transit/about-calgary-transit/reports/lrt/calgarys_lrt_1st_25years_trb_revised.pdf « / » https://dokumen.pub/energy-capitals-local-impact-global-influence-1nbsped-9780822979227-9780822962663.html « / » https://onlinepubs.trb.org/onlinepubs/circulars/ec112.pdf « / » https://www.calgary.ca/green-line/green-line-for-riders/green-line-experience-low-floor-vehicle-ride.html « / » https://www.calgary.ca/green-line/green-line-news-and-resources/article-engine/jul-28-2023-green-line-brief-history-of-light-rail-vehicles-in-calgary.html […]