@ARTICLE {3860,
author={F. Liu and D. Qiu Qiu},
doi={10.1109/TFUZZ.2009.2013840},
journal={IEEE Transactions on Fuzzy Systems},
title={Diagnosability of Fuzzy Discrete Event Systems: A Fuzzy Approach},
year={2009},
month={January},
volume={17},
number={13},
pages={372-384},
ISSN={1063-6706}
}