Juris Hartmanis, Richard Edwin Stearns. Computational complexity of recursive sequences. In Proceedings of the Fifth Annual Symposium on Switching Circuit Theory and Logical Design, 11-13 November 1964, Princeton, New Jersey, USA. pages 82-90, IEEE, 1964.
@inproceedings{HartmanisS64, title = {Computational complexity of recursive sequences}, author = {Juris Hartmanis and Richard Edwin Stearns}, year = {1964}, researchr = {https://researchr.org/publication/HartmanisS64}, cites = {0}, citedby = {0}, pages = {82-90}, booktitle = {Proceedings of the Fifth Annual Symposium on Switching Circuit Theory and Logical Design, 11-13 November 1964, Princeton, New Jersey, USA}, publisher = {IEEE}, }