@book { FitnesstrainerBLizenzTrainingsplanungnachderILBMethode,
    title = "Fitnesstrainer B-Lizenz - Trainingsplanung nach der ILB-Methode",
    author = "Nils {Pollueck}",
    year = "2012",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656192558",
    url = "https://www.hausarbeiten.de/document/192917"
}