@book { GeschichtederkonomischenTheorie,
    title = "Geschichte der ökonomischen Theorie",
    author = "Tim {Ebner}",
    year = "2013",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656372134",
    url = "https://www.hausarbeiten.de/document/209417"
}