Aravind K. Joshi. A note on the strong and weak generative powers of formal systems. Theoretical Computer Science, 293(2):243-259, 2003.
@article{Joshi03:0, title = {A note on the strong and weak generative powers of formal systems}, author = {Aravind K. Joshi}, year = {2003}, researchr = {https://researchr.org/publication/Joshi03%3A0}, cites = {0}, citedby = {0}, journal = {Theoretical Computer Science}, volume = {293}, number = {2}, pages = {243-259}, }