@book { KryptowhrungenundderenZukunftsaussichten,
    title = "Kryptowährungen und deren Zukunftsaussichten",
    author = "Steffi {Schirmer}",
    year = "2016",
    publisher = "BACHELOR + MASTER PUBLISHING",
    address = "Hamburg, Deutschland",
    url = "https://m.bachelor-master-publishing.de/document/322084"
}