@book { AusdauertrainingTrainingsplanimMesozyklus,
    title = "Ausdauertraining. Trainingsplan im Mesozyklus",
    author = "Sandra {Rebholz}",
    year = "2019",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    url = "https://www.hausarbeiten.de/document/511375"
}