@book { DieRolledesKindesimBundFreierevangelischerGemeindeninDeutschland,
    title = "Die Rolle des Kindes im Bund Freier evangelischer Gemeinden in Deutschland",
    author = "Peter {Mergler}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1103413"
}