@incollection{Nufer2018,
  author    = {Gerd Nufer},
  title     = {Kundenbewertung im Rahmen des CRM im Sport},
  booktitle = {Customer Relationship Management in Sportvereinen},
  editor    = {Ariane Bagusat},
  isbn      = {978-3-503-17623-6},
  year      = {2018},
}