@book { Spracheverstehenverwendenbersetzen,
    title = "Sprache verstehen, verwenden, übersetzen",
    author = "Lew {Zybatow} and Alena {Petrova}",
    year = "2018",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b14525",
    url = "https://www.peterlang.com/document/1055803"
}