V. Wiktor Marek, Miroslaw Truszczynski. Modal Logic for Default Reasoning. Annals of Mathematics and Artificial Intelligence, 1:275-302, 1990.
@article{MarekT90, title = {Modal Logic for Default Reasoning}, author = {V. Wiktor Marek and Miroslaw Truszczynski}, year = {1990}, tags = {modal logic, logic}, researchr = {https://researchr.org/publication/MarekT90}, cites = {0}, citedby = {0}, journal = {Annals of Mathematics and Artificial Intelligence}, volume = {1}, pages = {275-302}, }