Gösta Grahne
Updates and Counterfactuals
KR, 1991.
@inproceedings{KR-1991-Grahne, author = "Gösta Grahne", booktitle = "{Proceedings of the Second International Conference on Principles of Knowledge Representation and Reasoning}", isbn = "1-55860-165-1", pages = "269--276", publisher = "{Morgan Kaufmann}", title = "{Updates and Counterfactuals}", year = 1991, }