for Analysing Travel Behaviour of Individuals: Some Recent Developments', in David A. Hensher and Peter R. Stopher (eds …-Preference Information', in Peter Stopher and Martin Lee-Gosselin (eds), Understanding Travel Behaviour in an Era of Change, Chapter 9 ….), Travel Behaviour Research: The Leading Edge, Pergamon, Oxford, 17-64. -- Quandt, R.E. (1970), The Demand for Travel: Theory …