1. IPC2002;Mohitpour,2002
2. PHMSA Pipeline Safety Program: Distribution and Transmission Annual Mileage Totals,2007
3. Corrosion Cost & Prevention Strategies in the US, Report No. FHWA-RD-01–156, Federal Highway Administration, September 30;Koch,2001
4. Corrosion Cost & Prevention Strategies in the US – Appendix E – Gas and Liquid Transmission Pipelines, Report No. FHWA-RD-01–156, Federal Highway Administration, September 30;Thompson,2001
5. PHMSA Pipeline Safety Program: Pipeline Safety Incident Reports,2007