@book { AmGrundsteinderDemokratie,
    title = "Am Grundstein der Demokratie",
    author = "Susanne {Kitschun} and Ralph-Jürgen {Lischke}",
    year = "2012",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-01678-9",
    url = "https://www.peterlang.com/document/1045711"
}