TY  - JOUR
AU  - Andrzej Nowicki
TI  - An example of a simple derivation in two variables
JO  - Colloquium Mathematicum
PY  - 2008
SP  - 25
EP  - 31
VL  - 113
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/cm113-1-3/
DO  - 10.4064/cm113-1-3
LA  - en
ID  - 10_4064_cm113_1_3
ER  -