@book { TheRiseofHighStakesEducationalTestinginDenmark19201970,
    title = "The Rise of High-Stakes Educational Testing in Denmark (1920-1970)",
    author = "Christian {Ydesen}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1107734"
}