@book { JuanRioseinperuanischerLyriker,
    title = "Juan Rios: ein peruanischer Lyriker",
    author = "Heidrun {Adler}",
    year = "1972",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1069439"
}