@book { RencontresRainerMariaRilke,
    title = "Rencontres Rainer Maria Rilke",
    author = "Jürgen {Söring} and Walter {Weber}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1113873"
}