@book { MedizinischeEingriffebeigeistigbehindertenMenschen,
    title = "Medizinische Eingriffe bei geistig behinderten Menschen",
    author = "Helly {Posselt-Wenzel}",
    year = "2004",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1097591"
}