@book { DieKonstantinischeWende,
    title = "Die Konstantinische Wende",
    author = "Rolf {Bergmeier}",
    year = "2011",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640964475",
    url = "https://www.hausarbeiten.de/document/175478"
}