@book { MeasurementandDefinitionsofDevelopment,
    title = "Measurement and Definitions of Development",
    author = "Linda {Vuskane}",
    year = "2010",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640719150",
    url = "https://www.hausarbeiten.de/document/156384"
}