@book { TheQuestionofMadnessintheWorksofETAHoffmannandMaryShelley,
    title = "The Question of Madness in the Works of E.T.A. Hoffmann and Mary Shelley",
    subtitle = "With Particular Reference to Frankenstein and Der Sandmann",
    author = "Karin {Preuß}",
    year = "2003",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1095537"
}