http://www.railforthevalley.com/category/skytrain-and-the-canada-line
http://www.vancitybuzz.com/2015/08/four-stations-could-be-added-to-skytrain-canada-line
http://www.railforthevalley.com/latest-news/zweisystem/evergreen-line-woes-how-much-over-budget/
http://www.railforthevalley.com/latest-news/zweisystem/bcit-to-ubc-and-picnics-in-the-park-by-tram-2/
https://en.wikipedia.org/wiki/Evergreen_Extension#Design
http://www.railforthevalley.com/latest-news/zweisystem/langley-to-vancouver-in-50-minutes-via-rail-for-the-valley/
http://www.railforthevalley.com/the-need/