@book { LawinenwinterimSkigebietRisikooderChance,
    title = "Lawinenwinter im Skigebiet - Risiko oder Chance?",
    author = "Bianca {Hannemann}",
    year = "2001",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832446635",
    url = "https://m.diplom.de/document/220272"
}