International Journal of Human-Computer Studies
International Journal of Human - Computer Studies > 2009 > 67 > 6 > 497-514
International Journal of Human - Computer Studies > 2009 > 67 > 10 > 887-902
International Journal of Human - Computer Studies > 2009 > 67 > 6 > 497-514
International Journal of Human - Computer Studies > 2009 > 67 > 10 > 887-902