@book { TextundMusikbeiOswaldvonWolkenstein,
    title = "Text und Musik bei Oswald von Wolkenstein",
    author = "Elke {Loenertz}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1095015"
}