@unpublished{RaschendorferHamacher2014,
  author  = {Ines M. Raschendorfer and Horst W. Hamacher},
  title   = {Hierarchical Edge Colorings and Rehabilitation Therapy Planning in Germany},
  institution = {Fachbereich Mathematik},
  series    = {Report in Wirtschaftsmathematik (WIMA Report)},
  number    = {150},
  pages     = {19},
  year    = {2014},
  url  = {http://nbn-resolving.de/urn:nbn:de:hbz:386-kluedo-38329},
}