@book { DerBeweiswertelektronischerSignaturen,
    title = "Der Beweiswert elektronischer Signaturen",
    author = "Sebastian {Jungermann}",
    year = "2002",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1094294"
}