@book { TheFunctionofConferenceOrganisersandtheMarketingforInformationTechnologySeminarsofSmallandMediumSizedIndustries, title = "The Function of Conference Organisers and the Marketing for Information Technology Seminars of Small and Medium-Sized Industries", author = "Karin {Schneider}", year = "1999", publisher = "Diplom.de", address = "Hamburg, Deutschland", doi = "10.3239/9783832417093", url = "https://m.diplom.de/document/217581" }