@book { PoetischeGestalt,
    title = "Poetische Gestalt",
    subtitle = "Studien zum lyrischen Spätwerk Johannes R. Bechers",
    author = "Rüdiger {Ziemann}",
    year = "1992",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1079876"
}