Susan Bull Norasnita Ahmad Matthew Johnson Rasyidi Johan Andrew Mabbott Alice Kerly Adaptive Navigation Support, Learner Control and Open Learner Models. 275-278 2008 AH http://dx.doi.org/10.1007/978-3-540-70987-9_33 conf/ah/2008 db/conf/ah/ah2008.html#BullAJJMK08