An Optimization Approach for Long Term Planning of Multimodal Freight Transportation Systems UMA CONTRIBUIÇÃO AO ESTUDO DOS CUSTOS DE TRANSPORTE DOMÉSTICO DE CARGA NO BRASIL Sparfloxacin Secretion across Caco-2 Cells Involves a Multidrug Resistance-Like Mechanism A global model for long term planning of multimodal freight transportation systems Une approche de modélisation d'un système multimodal de transport de marchandise en vue de son optimisation A framework for assessing the impact of transportation facility investment on local development Planning airports within regional multimodal transportation systems A bi-level scheme for assessing the impact of air transportation on local development Optimisation d'un système multimodal de transport de marchandises Optimisation d'un syst`eme multimodal de transport de marchandises