Miguel Lozano Francisco Grimaldo Javier Villaplana Towards Reactive Navigation and Attention Skills for 3D Intelligent Characters. 209-216 http://dx.doi.org/10.1007/3-540-44869-1_27 2003 conf/iwann/2003-2 IWANN (2) db/conf/iwann/iwann2003-2.html#LozanoGV03