@book { ,
    title = "德国法导论",
    subtitle = "特为国际学生撰写",
    author = "Gilbert {Gornig} and Hans-Detlef {Horn}",
    year = "2016",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-07124-5",
    url = "https://www.peterlang.com/document/1050756"
}