@inproceedings{Feillet2013,
    title = {The Multi-trip Vehicle Routing Problem with Time Windows and Release Dates},
    author = {D. Feillet and N. Absi and D. Cattaruzza},
    booktitle = {1st International Workshop on Synchronisation in Transport: SynchroTrans 2013},
    address = {Mainz, Germnay},
    month = {May},
    year = {2013}
}