@book { ZUCKERFREIBACKENfrGesundheitsbewusste,
    title = "ZUCKERFREI BACKEN für Gesundheitsbewusste",
    author = "Leonardo Oliver {Bassard}",
    year = "2021",
    publisher = "via tolino media",
    address = "München, Deutschland",
    url = "https://tolino.openpublishing.com/document/1031373"
}