Derick Wood. A Generalised Normal Form Theorem for Context-Free Grammars. Comput. J., 13(3):272-277, 1970.
@article{Wood70a, title = {A Generalised Normal Form Theorem for Context-Free Grammars}, author = {Derick Wood}, year = {1970}, tags = {context-aware, grammar}, researchr = {https://researchr.org/publication/Wood70a}, cites = {0}, citedby = {0}, journal = {Comput. J.}, volume = {13}, number = {3}, pages = {272-277}, }