Paul Tarau. Multi-engine Horn Clause Prolog. Theoretical Computer Science, 30(3):143, 1999. [doi]
@article{Tarau99, title = {Multi-engine Horn Clause Prolog}, author = {Paul Tarau}, year = {1999}, url = {http://www.elsevier.nl/locate/entcs/volume30.html}, tags = {Prolog}, researchr = {https://researchr.org/publication/Tarau99}, cites = {0}, citedby = {0}, journal = {Theoretical Computer Science}, volume = {30}, number = {3}, pages = {143}, }