@book { Wien1897,
    title = "Wien 1897",
    subtitle = "Kulturgeschichtliches Profil eines Epochenjahres",
    author = " {Glanz}",
    year = "1999",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1089457"
}