@book { DieProblematikderGesundheitsplanunginEntwicklungslndern,
    title = "Die Problematik der Gesundheitsplanung in Entwicklungsländern",
    author = "Wolfgang {Bichmann}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1072020"
}