Transportation Research Part A: Policy and Practice
Transportation Research Part A > 2012 > 46 > 1 > 190-199
Transportation Research Part A > 2012 > 46 > 4 > 684-695
Transportation Research Part A > 2012 > 46 > 1 > 190-199
Transportation Research Part A > 2012 > 46 > 4 > 684-695