TY  - JOUR
AU  - Robert Dryło
TI  - A Remark on a Paper of Crachiola and Makar-Limanov
JO  - Bulletin of the Polish Academy of Sciences. Mathematics
PY  - 2011
SP  - 203
EP  - 206
VL  - 59
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/ba59-3-2/
DO  - 10.4064/ba59-3-2
LA  - en
ID  - 10_4064_ba59_3_2
ER  -