1. Error and Uncertainty in Travel Surveys;Clarke,1979
2. Variation of travel time budgets and trip rates in Reading;Downes;Transpn Res.-A,1981
3. Les Budgets-Temps de Transport. Analyse de quelques agglomerations françaises;Godard,1978
4. A theoretical basis for travel demand models incorporating travel budgets;Golob,1981
5. The usefulness of travel budgets;Goodwin;Transpn Res.-A,1980