TY  - JOUR
AU  - M. Courbage
AU  - B. Kamiński
TI  - On the directional entropy of ${\Bbb Z}^2$-actions
 generated by cellular automata
JO  - Studia Mathematica
PY  - 2002
SP  - 285
EP  - 295
VL  - 153
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/sm153-3-5/
DO  - 10.4064/sm153-3-5
LA  - en
ID  - 10_4064_sm153_3_5
ER  -