Hajnal Andréka, István Németi, Ildikó Sain. On the Strength of Temporal Proofs. Theoretical Computer Science, 80(2):125-151, 1991.
@article{AndrekaNS91, title = {On the Strength of Temporal Proofs}, author = {Hajnal Andréka and István Németi and Ildikó Sain}, year = {1991}, researchr = {https://researchr.org/publication/AndrekaNS91}, cites = {0}, citedby = {0}, journal = {Theoretical Computer Science}, volume = {80}, number = {2}, pages = {125-151}, }