Transportation Research Part A: Policy and Practice
Transportation Research Part A > 2012 > 46 > 2 > 348-367
Transportation Research Part A > 2012 > 46 > 5 > 843-854
Transportation Research Part A > 2012 > 46 > 5 > 772-789
Transportation Research Part A > 2012 > 46 > 5 > 828-842
Transportation Research Part A > 2012 > 46 > 5 > 746-760