@book { AufstzezurKinderliteratur,
    title = "Aufsätze zur Kinderliteratur",
    subtitle = "Geschichte – Rezeption – Sprache",
    author = "Bernhard {Engelen}",
    year = "2005",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1099026"
}