Green Book: Appraisal and Evaluation in Central Government (2003)
http://www.hm-treasury.gov.uk/
Mott MacDonald Review of Large public Procurement in the UK 2002
http://www.hm-treasury.gov.uk/
WebTAG Unit 3.5.9: http://www.webtag.org.uk/
Treasury Taskforce (1999) How to Construct a Public Sector Comparator. Technical Note 5
HM Treasury (2003) Annex 4 of The Green Book:
http://www.hm-treasury.gov.uk/
HM Treasury (2004) Quantitative Assessment User Guide
HM Treasury (2004) The Orange Book:
http://www.hm-treasury.gov.uk/
Flyvbjerg, B. (2004) Procedures for Dealing with Optimism Bias in Transport Planning