TY - JOUR AU - Blatný, Petr AU - Bidlo, Radek AU - Meduna, Alexander TI - Automata with two-sided pushdowns defined over free groups generated by reduced alphabets JO - Kybernetika PY - 2007 SP - 265 EP - 278 VL - 43 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/KYB_2007__43_3_a0/ LA - en ID - KYB_2007__43_3_a0 ER -