@book { DiechronologischeEntwicklungderffentlichenSportfrderunginderBRD,
    title = "Die chronologische Entwicklung der öffentlichen Sportförderung in der BRD ",
    author = "Susanne {Winkler}",
    year = "2011",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640947676",
    url = "https://www.hausarbeiten.de/document/174353"
}