1. Central Bureau of Statistics, 1998. De mobiliteit van de Nederlandse bevolking in 1997. The Hague
2. Keijer, M., Rietveld, P., 1999. How do people get to the railway station: a spatial analysis of the first and last part of multimodal trips. Transport Planning and Technology, submitted for publication
3. Rietveld, P., 1999. The accessibility of railway stations; the role of the bicycle in The Netherlands. Transportation Research Part D 5, 71–75
4. Sandqvist, K., 1999. Growing up with and without a family car. Stockholm Institute of Education, Stockholm. Mimeo
5. The global demand for motorized mobility;Schafer;Transportation Research A,1998