@book { IdealismusinpraktischerAbsicht,
    title = "Idealismus in praktischer Absicht",
    author = "Hans Jörg {Sandkühler}",
    year = "2013",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-02628-3",
    url = "https://www.peterlang.com/document/1047487"
}