Mark Hepple. Normal Form Theorem Proving for the Lambek Calculus. In COLING. pages 173-178, 1990. [doi]
@inproceedings{Hepple90, title = {Normal Form Theorem Proving for the Lambek Calculus}, author = {Mark Hepple}, year = {1990}, url = {http://acl.ldc.upenn.edu/C/C90/C90-2030.pdf}, researchr = {https://researchr.org/publication/Hepple90}, cites = {0}, citedby = {0}, pages = {173-178}, booktitle = {COLING}, }