@book { DieNotwendigkeitderNotwendigkeit,
    title = "Die Notwendigkeit der Notwendigkeit",
    author = "Benedict {Beckeld}",
    year = "2013",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-03695-4",
    url = "https://www.peterlang.com/document/1046583"
}