- Author: Otfried Höffe
- Language: Spanish
- Year: 1997
- Author: Calsamiglia Albert
- Language: Spanish
- Year: 1997
- Author: Francisco Laporta
- Language: Spanish
- Year: 2000
- Author: Letizia Gianformaggio Bastida
- Language: Spanish
- Year: 1994
- Author: Nino Carlos Santiago
- Language: Spanish
- Year: 2003
- Author: Manuel Atienza
- Language: Spanish
- Year: 1998
- Author: Javier de Lucas
- Language: Spanish
- Year: 1993
- Author: Robert Alexy
- Language: Spanish
- Year: 1993
- Author: Eduardo García Máynez
- Language: Spanish
- Year: 1996
- Author: Ruth Zimmerling
- Language: Spanish
- Year: 1993
