Search results for: Frode Longva
Transport Policy > 2011 > 18 > 1 > 117-125
Research in Transportation Economics > 2010 > 29 > 1 > 212-218
Research in Transportation Economics > 2010 > 29 > 1 > 118-123
Research in Transportation Economics > 2010 > 29 > 1 > 80-88