@book { DieimaginreBurg,
    title = "Die imaginäre Burg",
    author = "Olaf {Wagener} and Heiko {Laß} and Thomas {Kühtreiber} and Peter {Dinzelbacher}",
    year = "2009",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1106526"
}