@book { ReichChristiundObrigkeit,
    title = "Reich Christi und Obrigkeit",
    subtitle = "Eine Studie zum reformatorischen Denken und Handeln Martin Bucers",
    author = "Andreas {Gäumann}",
    year = "2001",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    url = "https://www.peterlang.com/document/1092922"
}