@book { BernardOverberg,
    title = "Bernard Overberg",
    subtitle = "Religionspädagogik zwischen Aufklärung und Romantik",
    author = "P. Gundolf {Kraemer}",
    year = "2001",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1092425"
}