Branching approaches for integrated vehicle and crew scheduling

@article{Mesquita2009BranchingAF,
  title={Branching approaches for integrated vehicle and crew scheduling},
  author={Marta Mesquita and Ana Paias and Ana Resp{\'i}cio},
  journal={Public Transport},
  year={2009},
  volume={1},
  pages={21-37}
}