@book { FriedrichSchiller,
    title = "Friedrich Schiller",
    subtitle = "Playwright, Poet, Philosopher, Historian",
    author = "Paul {Kerry}",
    year = "2007",
    publisher = "Peter Lang Verlag",
    address = "Oxford, United Kingdom",
    url = "https://www.peterlang.com/document/1102297"
}