@book { TheDoppelgnger,
    title = "The Doppelgänger",
    author = "Deborah Ascher {Barnstone}",
    year = "2016",
    publisher = "Peter Lang Verlag",
    address = "Oxford, United Kingdom",
    doi = "10.3726/978-3-0353-0818-1",
    url = "https://www.peterlang.com/document/1053460"
}