1. Mega-Projects;Altshuler,2003
2. Anderson, D., Mohring, H., 1996. Congestion costs and congestion pricing for the twin cities. Minnesota Department of Transportation, Report No. 96-32.
3. Congestion costs and congestion pricing;Anderson,1997
4. The politico-economic link between public transport and road pricing: an ex-ante study of the Stockholm road-pricing trial;Armelius;Transport Policy,2006