@book { exemplar,
    title = "«exemplar»",
    subtitle = "Festschrift für Kurt Otto Seidel",
    author = "Rüdiger {Brandt} and Dieter {Lau}",
    year = "2008",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1104844"
}