@book { NaturbeiRainerMariaRilke,
    title = "Natur bei Rainer Maria Rilke",
    subtitle = "Wald, Park, Garten und ihre literarische Darstellung",
    author = "Alfred {Hagemann}",
    year = "2015",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-05328-9",
    url = "https://www.peterlang.com/document/1049021"
}