Transportation Research Part E: Logistics and Transportation Review
Transportation Research Part E > 2009 > 45 > 1 > 196-209
Transportation Research Part E > 2009 > 45 > 6 > 878-892
Transportation Research Part E > 2009 > 45 > 1 > 196-209
Transportation Research Part E > 2009 > 45 > 6 > 878-892