Pierre Péladeau. Logically Defined Subsets of N k. Theoretical Computer Science, 93(2):169-183, 1992.
@article{Peladeau92:0, title = {Logically Defined Subsets of N k}, author = {Pierre Péladeau}, year = {1992}, researchr = {https://researchr.org/publication/Peladeau92%3A0}, cites = {0}, citedby = {0}, journal = {Theoretical Computer Science}, volume = {93}, number = {2}, pages = {169-183}, }