@book { LehrenundLerneninberuflichenSchulen,
    title = "Lehren und Lernen in beruflichen Schulen",
    author = "Susan {Seeber} and Dieter {Squarra}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1095046"
}