@book { DefinitionundMessungvonGesundheit,
    title = "Definition und Messung von Gesundheit",
    author = "Gerald {Rubant}",
    year = "1997",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832402785",
    url = "https://m.diplom.de/document/216264"
}