@book { GesammelteWerke,
    title = "Gesammelte Werke",
    author = "Anton {Hilckman} and Tomasz {Stepien}",
    year = "2019",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b15547",
    url = "https://www.peterlang.com/document/1068698"
}