@book { SprachlicheHflichkeitbeiJugendlichen,
    title = "Sprachliche Höflichkeit bei Jugendlichen",
    author = "Eva {Neuland} and Benjamin {Könning} and Elisa {Wessels}",
    year = "2020",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b16993",
    url = "https://www.peterlang.com/document/1057827"
}