Ingo Thon Niels Landwehr Luc De Raedt A Simple Model for Sequences of Relational State Descriptions. 506-521 2008 ECML/PKDD (2) http://dx.doi.org/10.1007/978-3-540-87481-2_33 conf/pkdd/2008-2 db/conf/pkdd/pkdd2008-2.html#ThonLR08