@book { OrgelunterrichtinderseminaristischenLehrerbildung,
    title = "Orgelunterricht in der seminaristischen Lehrerbildung",
    author = "Karen {Voltz}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1094075"
}