@book { DieEinwilligungdesSportlersbeimDoping,
    title = "Die Einwilligung des Sportlers beim Doping",
    author = "Joachim {Rain}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1087271"
}