TY  - JOUR
AU  - Langer, Miroslav
TI  - On hierarchy of the positioned eco-grammar systems
JO  - Kybernetika
PY  - 2014
SP  - 696
EP  - 705
VL  - 50
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.14736/kyb-2014-5-0696/
DO  - 10.14736/kyb-2014-5-0696
LA  - en
ID  - 10_14736_kyb_2014_5_0696
ER  -