@book { DieSteuerungdesUnterrichtsablaufs,
    title = "Die Steuerung des Unterrichtsablaufs",
    author = "Veronika {Reiss}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1072564"
}