Gong-Liang Chen, Jia-Yan Yao. Characterization of opaque automata. Discrete Mathematics, 247(1-3):65-78, 2002. [doi]
@article{ChenY02a, title = {Characterization of opaque automata}, author = {Gong-Liang Chen and Jia-Yan Yao}, year = {2002}, doi = {10.1016/S0012-365X(01)00160-1}, url = {http://dx.doi.org/10.1016/S0012-365X(01)00160-1}, researchr = {https://researchr.org/publication/ChenY02a}, cites = {0}, citedby = {0}, journal = {Discrete Mathematics}, volume = {247}, number = {1-3}, pages = {65-78}, }