2001-01-3729 Environmental Impact of a Clean Urban Bus Fleet in the City of Zaragoza
2003-01-0419 New Hybrid Bus Prototype for Clean Urban Transportation
2003-01-0419 New Hybrid Bus Prototype for Clean Urban Transportation
2003-01-0424 Emissions Comparison Using a Clean Urban Bus Fleet
2003-01-0424 Emissions Comparison Using a Clean Urban Bus Fleet