1. Passenger Demand Forecasting Handbook;Association of Train Operating Companies,2009
2. Income and distance elasticities of values of travel time savings: new swiss results;Axhausen;Transport Policy,2008
3. Beca Carter Hollings, Ferner, 2002. Project Evaluation Benefit Parameter Values. Prepared for Transfund New Zealand.
4. Börjesson, M., Fosgerau, M., Algers, S., 2009. Identifying the Value of Travel Time Distribution – Evidence from the Swedish Value of Time Study 2008. Paper presented at IATBR Conference, Jaipur, India.
5. Use of the logit scaling approach to test for rank-order and fatigue effects in stated preference data;Bradley;Transportation,1994