@book { PassiveEuthanasie,
    title = "Passive Euthanasie",
    subtitle = "Probleme beim Behandlungsabbruch bei Patienten mit apallischem Syndrom",
    author = "Matthias {Nagel}",
    year = "2002",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1093231"
}