@book { SelbstinterpretationbeiLeopardi,
    title = "Selbstinterpretation bei Leopardi",
    author = "Hanspeter {Klaus}",
    year = "1979",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    url = "https://www.peterlang.com/document/1070691"
}