@book { DieGrundlagenderPhysik,
    title = "Die Grundlagen der Physik",
    author = "Wolfgang {Schlageter}",
    year = "2013",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656361688",
    url = "https://www.hausarbeiten.de/document/208596"
}