@book { DashhereSchulweseninNordrheinWestfalen194546bis1958,
    title = "Das höhere Schulwesen in Nordrhein-Westfalen – 1945/46 bis 1958",
    author = "Lucas {Lohbeck}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1098325"
}