@book { GehaltsobergrenzenimSport,
    title = "Gehaltsobergrenzen im Sport",
    author = "Carsten {Henneberg}",
    year = "2018",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b13202",
    url = "https://www.peterlang.com/document/1113441"
}