@book { SchulbildungundihreWeiterentwicklung,
    title = "Schulbildung und ihre Weiterentwicklung",
    author = "Gerhard {Giesemann} and Hans {Rothe}",
    year = "2010",
    publisher = "Biblion",
    address = ", Germany",
    doi = "10.3726/b14634",
    url = "https://www.peterlang.com/document/1056235"
}