Marco Comini, Giorgio Levi, Maria Chiara Meo. A Theory of Observables for Logic Programs. Inf. Comput., 169(1):23-80, 2001.
@article{CominiLM01, title = {A Theory of Observables for Logic Programs}, author = {Marco Comini and Giorgio Levi and Maria Chiara Meo}, year = {2001}, tags = {logic programming, logic}, researchr = {https://researchr.org/publication/CominiLM01}, cites = {0}, citedby = {0}, journal = {Inf. Comput.}, volume = {169}, number = {1}, pages = {23-80}, }