@techreport{KallrathNickel2003,
  author    = {J. Kallrath and S. Nickel},
  title     = {A Polynomial Case of the Batch Presorting Problem},
  institution = {Fraunhofer (ITWM)},
  series    = {Berichte des Fraunhofer-Instituts f{\"u}r Techno- und Wirtschaftsmathematik (ITWM Report)},
  number    = {49},
  year      = {2003},
  url  = {http://nbn-resolving.de/urn:nbn:de:hbz:386-kluedo-13141},
}