@book { KryptoDaytradingfrEinsteiger,
    title = "Krypto Daytrading – für Einsteiger -",
    author = "Benjamin {Rubin}",
    year = "2022",
    publisher = "via tolino media",
    address = "München, Deutschland",
    url = "https://tolino.openpublishing.com/document/1272482"
}