@book { Verfassungswandel,
    title = "Verfassungswandel",
    subtitle = "Die Wechselwirkung zwischen Grundrechten und informationstechnischen Ermittlungsmethoden",
    author = "Christine {Kulwicki}",
    year = "2011",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1108292"
}