TY  - JOUR
AU  - Hanan Shabana
TI  - $D_2$-synchronization in nondeterministic automata
JO  - Ural mathematical journal
PY  - 2018
SP  - 99
EP  - 110
VL  - 4
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/UMJ_2018_4_2_a10/
LA  - en
ID  - UMJ_2018_4_2_a10
ER  -