@book { MittelalterlicheLiteraturanWaldorfschulen,
    title = "Mittelalterliche Literatur an Waldorfschulen",
    author = "Frank {Steinwachs}",
    year = "2022",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b19800",
    url = "https://www.peterlang.com/document/1266286"
}