@book { LeckereRezeptefrLowCarbBrotezumselberbacken,
    title = "Leckere Rezepte für Low Carb Brote zum selber backen !",
    author = "Stefan {Leinauer}",
    year = "2021",
    publisher = "via tolino media",
    address = "München, Deutschland",
    url = "https://tolino.openpublishing.com/document/1008262"
}