@book { MarktanalyseisraelischerWeineinDeutschland,
    title = "Marktanalyse israelischer Weine in Deutschland",
    author = "Tom {Helman}",
    year = "2011",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640980208",
    url = "https://www.hausarbeiten.de/document/176554"
}