@book { UnHflichkeit,
    title = "(Un)Höflichkeit",
    subtitle = "Eine kulturologische Analyse- Deutsch – Italienisch – Polnisch",
    author = "Silvia {Bonacchi}",
    year = "2013",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-03591-9",
    url = "https://www.peterlang.com/document/1046714"
}