1. Comparing investment in new transport infrastructure: roads versus railways?;Afusso;Fiscal Studies,2003
2. Binational border transportation planning and programming study: Task 3.1 report: Description of commercial motor vehicle trade flow process;Barton-Ashman and La Empresa,1996
3. Binational border transportation planning and programming study: Task 13 report: Estimating border crossing utility;Barton-Ashman and La Empresa,1998
4. Binational border transportation planning and programming study: Task 14 report: Methodologies for developing estimates of costs and benefits for assessing transportation impacts of US-Mexican trade;Barton-Ashman and La Empresa,1998
5. Binational border transportation planning and programming study: Task 3 report: Inventory of selected port of entry systems on the US-Mexican border;Barton-Ashman and La Empresa,1998