Peter Sewell. Nonaxiomatisability of Equivalences over Finite State Processes. Annals of Pure and Applied Logic, 90(1-3):163-191, 1997.
@article{Sewell97:0, title = {Nonaxiomatisability of Equivalences over Finite State Processes}, author = {Peter Sewell}, year = {1997}, researchr = {https://researchr.org/publication/Sewell97%3A0}, cites = {0}, citedby = {0}, journal = {Annals of Pure and Applied Logic}, volume = {90}, number = {1-3}, pages = {163-191}, }