@article{anovelcolumngenerationheuristicfor,
  title = {A Novel Column Generation Heuristic for Airline Crew Pairing Optimization with Large-scale Complex Flight Networks},
  author = {Divyam Aggarwal and Dhish Kumar Saxena and Saaju Pualose and Thomas Bäck and Michael Emmerich},
  year = {2020},
  eprint = {2005.08636},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2005.08636v4},
}