@book { MissionGlaubensinterpretationGlaubensrealisation,
    title = "Mission - Glaubensinterpretation - Glaubensrealisation",
    subtitle = "Ein Beitrag zur ökumenischen Missionstheologie",
    author = " {Anonym}",
    year = "1980",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1072012"
}