@book { TrainerkompetenzundTrainerauswahl,
    title = "Trainerkompetenz und Trainerauswahl",
    author = "Bettina {Eismann}",
    year = "2005",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832488093",
    url = "https://m.diplom.de/document/223989"
}