Stephen A. Cook. Path Systems and Language Recognition. In Conference Record of Second Annual ACM Symposium on Theory of Computing, 4-6 May 1970, Northampton, Massachusetts, USA. pages 70-72, ACM, 1970.
@inproceedings{Cook70, title = {Path Systems and Language Recognition}, author = {Stephen A. Cook}, year = {1970}, researchr = {https://researchr.org/publication/Cook70}, cites = {0}, citedby = {0}, pages = {70-72}, booktitle = {Conference Record of Second Annual ACM Symposium on Theory of Computing, 4-6 May 1970, Northampton, Massachusetts, USA}, publisher = {ACM}, }