@book { DietheoretischeAneignungderProduktionsmittel,
    title = "Die theoretische Aneignung der Produktionsmittel",
    author = "Andreas {Tietze}",
    year = "2012",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-02097-7",
    url = "https://www.peterlang.com/document/1047340"
}