@book { HerrPuntilaundseinKnechtMatti,
    title = "Herr Puntila und sein Knecht Matti",
    author = "Marja-Liisa {Sparka}",
    year = "2014",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-04848-3",
    url = "https://www.peterlang.com/document/1048502"
}