@article{aspatiotemporalrepresentationforthe,
  title = {A Spatio-Temporal Representation for the Orienteering Problem with Time-Varying Profits},
  author = {Zhibei Ma and Kai Yin and Lantao Liu and Gaurav S. Sukhatme},
  year = {2016},
  eprint = {1611.08037},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1611.08037v2},
}