TY  - JOUR
AU  - Pálvölgyi, Dömötör
TI  - The range of non-linear natural polynomials cannot be context-free
JO  - Kybernetika
PY  - 2020
SP  - 722
EP  - 726
VL  - 56
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.14736/kyb-2020-4-0722/
DO  - 10.14736/kyb-2020-4-0722
LA  - en
ID  - 10_14736_kyb_2020_4_0722
ER  -