@article{DBLP:journals/tocl/Lukasiewicz01, title = "Probabilistic Logic Programming with Conditional Constraints", author = "Thomas Lukasiewicz", year = "2001", journal = "ACM Transactions on Computational Logic (TOCL)", month = "July", number = "3", pages = "289--339", url = "http://doi.acm.org/10.1145/377978.377983", volume = "2", }