@book { FranklsmoralischerImperativ,
    title = "Frankls moralischer Imperativ",
    subtitle = "Die ethische Dimension in Viktor Frankls psychotherapeutischem/philosophischem Menschenbild",
    author = "Theresia {Leitner-Schweighofer}",
    year = "2009",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1106455"
}