@misc{Maier2018,
  author    = {Erik Maier},
  title     = {Vom Produkt zur Dienstleistung},
  url       = {https://handels.blog/diskussion/vom-produkt-zur-dienstleistung/},
  institution = {Chair of Marketing and Retail},
  type      = {other},
  year        = {2018},
}