Jelmer van Ast Robert Babuska Dynamic Exploration in Q(lambda)-learning. 41-46 2006 IJCNN http://ieeexplore.ieee.org/xpls/abs_all.jsp?isnumber=36115&arnumber=1716068&count=787&index=6 conf/ijcnn/2006 db/conf/ijcnn/ijcnn2006.html#AstB06