@book { Lasfrmulashonorficasconsimoenlahistoriadelespaol,
    title = "Las fórmulas honoríficas con -ísimo en la historia del español",
    author = "Andrzej {Zieliński}",
    year = "2017",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b11161",
    url = "https://www.peterlang.com/document/1055159"
}