@book { RatgeberBeckenbodenschwche,
    title = "Ratgeber Beckenbodenschwäche",
    author = "Priv.-Doz. Dr. Stefan {Riss} and Univ.-Doz. Dr. Barbara {Bodner-Adler}",
    year = "2021",
    publisher = "humboldt",
    address = "Hannover, Deutschland",
    url = "https://schluetersche.openpublishing.com/document/1108898"
}