@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}
}