TY  - JOUR
AU  - J.M. Gamboa
AU  - J.M. Ruiz
TI  - On rings of semialgebraic functions.
JO  - Mathematische Zeitschrift
PY  - 1991
SP  - 527
EP  - 532
VL  - 206
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZ_1991__206_1_174240/
ID  - MZ_1991__206_1_174240
ER  -