@book { ManagementvonMessebeteiligungen,
    title = "Management von Messebeteiligungen",
    author = "Ralf {Ueding} and  {Universität Münster}",
    year = "2018",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b13625",
    url = "https://www.peterlang.com/document/1068224"
}