@book { HermannHesseHandbuch,
    title = "Hermann Hesse-Handbuch",
    author = "Jürgen {Below}",
    year = "2023",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b20871",
    url = "https://www.peterlang.com/document/1353652"
}