@article{unknown2014collective,
  title={Collective design of robot locomotion},
  author={Mark Wagy and Joshua Bongard},
  journal={ALIFE},
  volume={14},
  pages={138-145},
  journalpage={https://pdfs.semanticscholar.org/e8c5/9940698976b17d0b8d0f618904b950033ecb.pdf},
  year={2014},
  citations={}
}