@book { ZwlfMtter,
    title = "Zwölf Mütter",
    author = "Xiang {Hua} and Zhou {Han} and Liu {Ziqi}",
    year = "2023",
    publisher = "Herzsprung-Verlag",
    address = ", Deutschland",
    url = "https://tolino.openpublishing.com/document/1420385"
}