@book { StromausSonneSaS,
    title = "Strom aus Sonne (SaS)",
    author = "Christian {Hose}",
    year = "2002",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832450793",
    url = "https://m.diplom.de/document/220610"
}