@book { BiomasseanbauundNaturschutz,
    title = "Biomasseanbau und Naturschutz",
    author = "Jens {Lüdeke}",
    year = "2008",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836615761",
    url = "https://m.diplom.de/document/225937"
}