@book { Irrlicht,
    title = "Irrlicht",
    subtitle = "Bilder, Texte und Zeichnungen («Musics») 1987-1997",
    author = "Evelin {Klein}",
    year = "1997",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1085258"
}