@article{zhang02b,
  title =	 {Dynamic crane deployment in container storage yards},
  volume =	 36,
  issn =	 01912615,
  url =
                  {http://linkinghub.elsevier.com/retrieve/pii/S0191261501000170},
  doi =		 {10.1016/S0191-2615(01)00017-0},
  number =	 6,
  journal =	 {Transportation Research Part B: Methodological},
  author =	 {C Zhang},
  year =	 2002,
  pages =	 {537--555}
}