@ARTICLE {6285,
author={S. Zheng and L. Li and D. Qiu Qiu},
doi={10.1007/s10773-010-0582-0},
journal={Intrnl. Journal of Theoretical Physics},
title={Two-Tape Finite Automata with Quantum and Classical States},
year={2011},
month={September},
volume={2011},
number={50},
pages={1262-1281},
ISSN={0020-7748}
}