1. 'AusCID Infrastructure Survey ', 2003 , viewed October 2005, http://members.oze-mail.com.au/~auscid/.
2. Cross City Tunnel: Summary of Contracts, 2003 , viewed October 2005, http://www.treasury.nsw.gov.au/wwg/pdf/cct_contracts_summary_june03_2.pdf.
3. Investment and Hysteresis