@book { CorporateEventsEinErfolgsinstrumentdesEventmarketings, title = "Corporate Events - Ein Erfolgsinstrument des Eventmarketings", author = "Anna {Kräher}", year = "2008", publisher = "Diplom.de", address = "Hamburg, Deutschland", doi = "10.3239/9783836618144", url = "https://m.diplom.de/document/226080" }