@book { ParentalCustodyAfterSeparationorDivorce,
    title = "Parental Custody After Separation or Divorce",
    subtitle = "A Comparison Between German and Chinese Law",
    author = "Shuang {Wang}",
    year = "2020",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b17848",
    url = "https://www.peterlang.com/document/1059389"
}