@article{DBLP:journals/amai/Lukasiewicz02, title = "Probabilistic Default Reasoning with Conditional Constraints", author = "Thomas Lukasiewicz", year = "2002", journal = "Annals of Mathematics and Artificial Intelligence", month = "March", number = "1--3", pages = "35--88", url = "http://dx.doi.org/10.1023/A:1014445017537", volume = "34", }