@book { PolarittsstrukturenimWerkHermannHesses,
    title = "Polaritätsstrukturen im Werk Hermann Hesses",
    subtitle = "Lyrik, Epik, Drama",
    author = "Dorothee {Gommen}",
    year = "2006",
    publisher = "Meidenbauer",
    address = ", Germany",
    url = "https://www.peterlang.com/document/1102253"
}