An approach to distinguishing the levels of free-labeled $L$-type Petri net languages in the Chomsky hierarchy
Crossref DOI link: https://doi.org/10.1360/N112016-00056
Published Online: 2017-03-06
Published Print: 2017-06-01
Update policy: https://doi.org/10.1360/scp-crossmark-policy-page
TIAN, Liqin
LUAN, Shangmin
GENG, Zilin