RT Journal Article T1 Rings of continuous semialgebraic functions A1 Gamboa Mutuberria, José Manuel YR 1989 FD 1989 LK https://hdl.handle.net/20.500.14352/57728 UL https://hdl.handle.net/20.500.14352/57728 DS Docta Complutense RD 8 abr 2025