@book { PhonostilistischeVariationbeinichtnativenSprecherndesDeutschen,
    title = "Phonostilistische Variation bei nicht-nativen Sprechern des Deutschen",
    author = "Natalie {Hochfeld}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1093670"
}