Tom Head. Deciding the Immutability of Regular Codes and Languages Under Finite Transductions. Inf. Process. Lett., 31(5):239-241, 1989.
@article{Head89, title = {Deciding the Immutability of Regular Codes and Languages Under Finite Transductions}, author = {Tom Head}, year = {1989}, researchr = {https://researchr.org/publication/Head89}, cites = {0}, citedby = {0}, journal = {Inf. Process. Lett.}, volume = {31}, number = {5}, pages = {239-241}, }