@book { Lacomplejidaddelosidiomas,
    title = "La complejidad de los idiomas",
    author = "Germán {Coloma}",
    year = "2017",
    publisher = "Peter Lang Verlag",
    address = "Oxford, United Kingdom",
    doi = "10.3726/b10613",
    url = "https://www.peterlang.com/document/1055055"
}