@book { UntersuchungenzurInfrastrukturRomsinderKaiserzeit,
    title = "Untersuchungen zur Infrastruktur Roms in der Kaiserzeit",
    author = "Nico {Ernstberger}",
    year = "2006",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832496098",
    url = "https://m.diplom.de/document/224689"
}