@book { GanzheitlichesGedchtnistrainingfrMnner,
    title = "Ganzheitliches Gedächtnistraining für Männer",
    author = "Annegret {Schulze Esking}",
    year = "2023",
    publisher = "Schlütersche Verlagsgesellschaft mbH & Co. KG",
    address = ", Deutschland",
    url = "https://schluetersche.openpublishing.com/document/1323859"
}