@book { UntersuchungenzurSprachverwendungderpolitischenLinkenSpaniens,
    title = "Untersuchungen zur Sprachverwendung der politischen Linken Spaniens",
    author = "Christina {Becker}",
    year = "2009",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1106899"
}