Transportation Research Part B: Methodological
Transportation Research Part B > 2012 > 46 > 7 > 894-916
Transportation Research Part B > 2012 > 46 > 7 > 874-893
Transportation Research Part B > 2012 > 46 > 7 > 894-916
Transportation Research Part B > 2012 > 46 > 7 > 874-893