Markus Holzer, Martin Kutrib, Andreas Malcher. Complexity of multi-head finite automata: Origins and directions. Theoretical Computer Science, 412(1-2):83-96, 2011. [doi]
@article{HolzerKM11,
title = {Complexity of multi-head finite automata: Origins and directions},
author = {Markus Holzer and Martin Kutrib and Andreas Malcher},
year = {2011},
doi = {10.1016/j.tcs.2010.08.024},
url = {http://dx.doi.org/10.1016/j.tcs.2010.08.024},
researchr = {https://researchr.org/publication/HolzerKM11},
cites = {0},
citedby = {0},
journal = {Theoretical Computer Science},
volume = {412},
number = {1-2},
pages = {83-96},
}