@book { Biotechnologie,
    title = "Biotechnologie",
    subtitle = "Eine neue Wachstumsbranche für Mecklenburg-Vorpommern?",
    author = "Ramona {Schnepf}",
    year = "2002",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832454463",
    url = "https://m.diplom.de/document/220999"
}