@book { WorkHealthBalance,
    title = "Work-Health Balance",
    author = "Lola Ananda {Siegmund} and Cora {Besser-Siegmund}",
    year = "2016",
    publisher = "humboldt",
    address = "Hannover, Deutschland",
    url = "https://schluetersche.openpublishing.com/document/403271"
}