@book { FatburnerAbnehmenohneKalorientabelle,
    title = "Fatburner: Abnehmen ohne Kalorientabelle",
    author = "Heike {van Braak}",
    year = "2015",
    publisher = "Open Publishing",
    address = "München, Deutschland",
    url = "https://books.openpublishing.com/document/288861"
}