@book { PabloNeruda,
    title = "Pablo Neruda",
    subtitle = "Politische Lyrik und poetischer Realismus",
    author = "Jürgen {von Stackelberg}",
    year = "2002",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1093453"
}