@book { LegalRulesMoralNormsandDemocraticPrinciples,
    title = "Legal Rules, Moral Norms and Democratic Principles",
    author = "Bartosz {Wojciechowski} and Piotr W. {Juchacz} and Karolina {Cern}",
    year = "2013",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-02194-3",
    url = "https://www.peterlang.com/document/1047420"
}