David S. Moffat, Peter M. D. Gray. Perlog: A Prolog With Persistence and Modules. Comput. J., 31(2):110-115, 1988.
@article{MoffatG88, title = {Perlog: A Prolog With Persistence and Modules}, author = {David S. Moffat and Peter M. D. Gray}, year = {1988}, tags = {Prolog}, researchr = {https://researchr.org/publication/MoffatG88}, cites = {0}, citedby = {0}, journal = {Comput. J.}, volume = {31}, number = {2}, pages = {110-115}, }