@article{adiscretefireflyalgorithmtosolvearich,
  title = {A Discrete Firefly Algorithm to Solve a Rich Vehicle Routing Problem Modelling a Newspaper Distribution System with Recycling Policy},
  author = {E. Osaba and Xin-She Yang and F. Diaz and E. Onieva and A. D. Masegosa and A. Perallos},
  year = {2016},
  eprint = {1604.04146},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1604.04146v1},
}