@book { TrainingsplanunganhandderILBMethodeTrainingslehreI,
    title = "Trainingsplanung anhand der ILB Methode. Trainingslehre I",
    author = "Maria {Stahl}",
    year = "2016",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    url = "https://www.hausarbeiten.de/document/338567"
}