@incollection{BuehlerNufer2016,
  author    = {Andr{\'e} B{\"u}hler and Gerd Nufer},
  title     = {Relationship marketing in sports : building and establishing longstanding relations in the business of sports},
  booktitle = {Routledge handbook of sports marketing},
  editor    = {Simon Chadwick and Nicolas Chavanat and Michel Desbordes},
  isbn      = {978-1-138-82351-8},
  year      = {2016},
}