@article{AppelfellerBuchholz2006,
  author    = {Appelfeller, W and Buchholz, W.},
  title     = {Supplier Relationship Management - Strategie, Prozesse und IT des modernen Beschaffungsmanagements, 3. Teil},
  series = {Supply Management},
  journal   = {Supply Management},
  number    = {Dezember},
  year      = {2006},
  language  = {de}
}
@article{AppelfellerBuchholz2006,
  author    = {Appelfeller, W and Buchholz, W.},
  title     = {Supplier Relationship Management - Strategie, Prozesse und IT des modernen Beschaffungsmanagements, 2. Teil},
  series = {Supply Management},
  journal   = {Supply Management},
  number    = {November},
  year      = {2006},
  language  = {de}
}
@article{AppelfellerBuchholzSchulteindenBaeumen2006,
  author    = {Appelfeller, W and Buchholz, W. and Schulte in den B{\"a}umen,},
  title     = {Supplier Relationship Management - Strategie, Prozesse und IT des modernen Beschaffungsmanagements, 1. Teil},
  series = {Supply Management},
  journal   = {Supply Management},
  number    = {Oktober},
  year      = {2006},
  language  = {de}
}