@book { DieSprachkologievonPuertoRico,
    title = "Die Sprachökologie von Puerto Rico",
    author = "Jelena {Deising}",
    year = "2022",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b19317",
    url = "https://www.peterlang.com/document/1246810"
}