@conference{Grubbstrom2004,
  author={R.W. Grubbstrom and L. Bogataj and M.C. Bonney and S.M. Disney and O. Tang},
  booktitle={Proceedings of the 13th International Working Conference on Production Economics}, 
  title={Interlinking MRP theory and production and inventory control models}, 
  address = {Igls, AUSTRIA},
  year={2004},
  month={16th-20th February}
  volume={2},
  pages={259-278},
  url={https://www.researchgate.net/publication/224753204_Reverse_logistics_A_study_of_bullwhip_in_continuous_time}
  }