@book { TextundStil,
    title = "Text und Stil",
    author = "Zofia {Bilut-Homplewicz} and Agnieszka {Mac} and Marta {Smykala} and Iwona {Szwed}",
    year = "2011",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-00863-0",
    url = "https://www.peterlang.com/document/1045639"
}