@book { AppropriationdesLanguesauCentredelaRechercheSpracherwerbalsForschungsgegenstand,
    title = "Appropriation des Langues au Centre de la Recherche / Spracherwerb als Forschungsgegenstand",
    author = "Hannelore {Küpers} and Marc {Souchon}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1094057"
}