Peter Christensen

Speed and road accidents : an evaluation of the power model

Rune Elvik, Peter Christensen, Astrid Helene Amundsen, 2004 .

Elementary units of exposure [road safety]

Rune Elvik, Alena Erke, Peter Christensen, 2009 .

The Decline of Iranshahr: Irrigation and Environments in the History of the Middle East, 500 B. C. to A. D. 1500

Peter Christensen, Steven Sampson, S. Sampson, 1996 .