@book { VernunftalsNorm,
    title = "Vernunft als Norm",
    subtitle = "Gesellschaftskonstruktion und Lebenshorizont",
    author = "Michael {Fischer}",
    year = "2005",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1099072"
}