1. Aversa, R . 2001: Modelagem de um sistema hub-feeder service para o transporte marítimo conteinerizado M.Sc. Dissertation, Polytechnic School, University of São Paulo, São Paulo, Brazil.
2. Aykin, T . 1990: On a quadratic integer program for the location of interacting hub facilities. European Journal of Operational Research 46: 409–411.
3. Brooke, A, Kendrik, D and Meeraus, A . 1997: General Algebraic Modeling System – GAMS. Edgard Blucher: São Paulo.
4. Campbell, JF . 1994: Integer programming formulations of discrete hub location problems. European Journal of Operations Research 72: 387–405.
5. Costa, GAA . 2001: Brazilian Port Development. Workshop, Department of Naval and Ocean Engineering, Polytechnic School, University of São Paulo, São Paulo, Brazil, 16 February 2001.