@book { SpurenderTradition,
    title = "Spuren der Tradition",
    subtitle = "Folkloristische Studien",
    author = "Otto {Holzapfel}",
    year = "1991",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    url = "https://www.peterlang.com/document/1078831"
}