@book { TheImportanceofIdeals,
    title = "The Importance of Ideals",
    subtitle = "Debating Their Relevance in Law, Morality, and Politics",
    author = "Wibren van der {Burg} and Sanne {Taekema}",
    year = "2004",
    publisher = "Peter Lang Verlag",
    address = "Bruxelles, Belgium",
    url = "https://www.peterlang.com/document/1097005"
}