- Author: Enrique del Teso Martín
- Language: Spanish
- Year: 1990
- Author: Wilhelm Capelle
- Language: Spanish
- Year: 1958
- Author: Wilhelm Capelle
- Language: Spanish
- Year: 1958
- Author: Edmund de Chasca
- Language: Spanish
- Year: 1967
- Author: Platón Conrado Eggers Lan
- Language: Spanish
- Year: 1986
- Author: Manuel Alvar
- Language: Spanish
- Year: 1986