D. E. Pitfield

SUB-OPTIMALITY IN FREIGHT DISTRIBUTION

D. E. Pitfield, 1978 .

A MULTI-STREAM APPROACH TO THE ANALYSIS OF HIERARCHICALLY DIFFERENTIATED SPATIAL INTERACTIONS

D. E. Pitfield, I. R. Gordons, 1982 .

Airline strategies for aircraft size and airline frequency with changing demand and competition: A simultaneous-equations approach for traffic on the north Atlantic

R. E. Caves, D. E. Pitfield, M. Quddus, 2010 .

Car-free development through UK community travel plans

Stephen Ison, Marcus P. Enoch, D. E. Pitfield, 2009 .