@book { MitarbeitermotivationimBereichEnergiesparen,
    title = "Mitarbeitermotivation im Bereich Energiesparen",
    author = "Gerald {Asamer}",
    year = "2015",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    url = "https://m.diplom.de/document/298624"
}