@book { AneignungundAbgrenzung,
    title = "Aneignung und Abgrenzung",
    author = "Véronique {Liard} and Bernhard {Spies}",
    year = "2013",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-03214-7",
    url = "https://www.peterlang.com/document/1047685"
}