@book { HeilpdagogischesVoltigiereninderPraxis,
    title = "Heilpädagogisches Voltigieren in der Praxis",
    author = "Nina {Macher}",
    year = "2010",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783842805217",
    url = "https://m.diplom.de/document/228076"
}