Kosaburo Hashiguchi. Improved Limitedness Theorems on Finite Automata with Distance Functions. Theoretical Computer Science, 72(1):27-38, 1990.
@article{Hashiguchi90, title = {Improved Limitedness Theorems on Finite Automata with Distance Functions}, author = {Kosaburo Hashiguchi}, year = {1990}, researchr = {https://researchr.org/publication/Hashiguchi90}, cites = {0}, citedby = {0}, journal = {Theoretical Computer Science}, volume = {72}, number = {1}, pages = {27-38}, }