Robert W. Floyd. A Note on Mathematical Induction on Phrase Structure Grammars. Inf. Comput., 4(4):353-358, December 1961.
@article{Floyd61:0, title = {A Note on Mathematical Induction on Phrase Structure Grammars}, author = {Robert W. Floyd}, year = {1961}, month = {December}, tags = {grammar}, researchr = {https://researchr.org/publication/Floyd61%3A0}, cites = {0}, citedby = {0}, journal = {Inf. Comput.}, volume = {4}, number = {4}, pages = {353-358}, }