@book { GesammelteWerke,
    title = "Gesammelte Werke",
    author = "Anton {Hilckman} and Tomasz {Stepien}",
    year = "2014",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-03593-3",
    url = "https://www.peterlang.com/document/1067512"
}