@book { SprachlicheHflichkeitininterkulturellerKommunikationundimDaFUnterricht, title = "Sprachliche Höflichkeit in interkultureller Kommunikation und im DaF-Unterricht", author = "Claus {Ehrhardt} and Eva {Neuland}", year = "2012", publisher = "Peter Lang Verlag", address = "Berlin, Germany", doi = "10.3726/978-3-653-01068-8", url = "https://www.peterlang.com/document/1054181" }