1. Bioenergy Producers Association of Ontario, 2011. Biogas Potential in Ontario—Briefing Note. [Online] Available HTTP: 〈http://www.apao.ca/apaoExp/images/uploads/documents/2010/APAO_Briefing_Note_Biogas_Potential_in_Ontario.pdf〉. Accessed October 23, 2012.
2. C40 Cities, 2011. C40 Cities—Climate Leadership Group. [Online] Available HTTP: 〈http://www.c40cities.org/〉. Accessed September 4, 2013.
3. The state of the art of electric and hybrid vehicles;Chan;Proc. IEEE,2002
4. Opportunities and challenges for a sustainable energy future;Chu;Nature,2012
5. City of Toronto, 2011. City of Toronto Annual Demolition/Construction Permits. Personal communication, Ryan Persaud, City of Toronto, May 2, 2011