%0 Journal Article %T Assessing Cognitive Load in Adaptive Hypermedia Systems: Physiological and Behavioral Methods %A Schultheis, Holger %A Jameson, Anthony %A , %J Lecture Notes in Computer Science, Adaptive Hypermedia and Adaptive Web-Based Systems %P 225-234 %@ 0302-9743 %D 2004-01-01 %I Springer Berlin Heidelberg %~ DeepDyve