Jan Ramon Tom Croonenborghs Daan Fierens Hendrik Blockeel Maurice Bruynooghe Generalized Ordering-Search for Learning Directed Probabilistic Logical Models. 40-42 2006 conf/ilp/2006 ILP http://dx.doi.org/10.1007/978-3-540-73847-3_10 db/conf/ilp/ilp2006.html#RamonCFBB06