TY  - JOUR
AU  - Piotr Jędrzejewicz
TI  - A note on characterizations of rings of constants
 with respect to derivations
JO  - Colloquium Mathematicum
PY  - 2004
SP  - 51
EP  - 53
VL  - 99
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/cm99-1-5/
DO  - 10.4064/cm99-1-5
LA  - en
ID  - 10_4064_cm99_1_5
ER  -