@book { ThePrecautionaryPrincipleinEURiskRegulation,
    title = "The Precautionary Principle in EU Risk Regulation",
    author = "Barbara {Berthoud}",
    year = "2014",
    publisher = "Anchor Academic Publishing",
    address = "Hamburg, Germany",
    url = "https://m.anchor-publishing.com/document/277346"
}