@article{Gécseg_1985, title={On v1-products of commutative automata}, volume={7}, url={https://cyber.bibl.u-szeged.hu/index.php/actcybern/article/view/3274}, number={1}, journal={Acta Cybernetica}, author={Gécseg, Ferenc}, year={1985}, month={Jan.}, pages={55-59} }