@book { TrainingsplanungnachderILBMethode,
    title = "Trainingsplanung nach der ILB-Methode",
    author = "Felix {Kracht}",
    year = "2010",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640722488",
    url = "https://www.hausarbeiten.de/document/156334"
}