@misc{KappelSchieleBuchholz2018,
  author    = {Antonia Kappel and Holger Schiele and Wolfgang Buchholz},
  title     = {Supplier relationships with competing customers - How can purchasers find out who is the preferred customer?, 27th Annual International Purchasing and Supply Education and Research Association (IPSERA) Conference: "Purchasing and Supply Chain Management: Fostering Innovation", Athens, Greece.},
  institution = {Wirtschaft (MSB)},
  type      = {lecture},
  year        = {2018},
}