@book { SCHULeerLEBEN,
    title = "SCHULe erLEBEN",
    subtitle = "Festschrift für Wilhelm Wittenbruch",
    author = "Markus {Brenk} and Ulrike {Kurth}",
    year = "2001",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1091767"
}