@book { IdentitySwitchimCyberspace,
    title = "Identity Switch im Cyberspace",
    subtitle = "Eine Form von Selbstinszenierung",
    author = "Silke {Roesler}",
    year = "2007",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1101755"
}