TY - JOUR T1 - Reflections on Human-Computer Interaction: A special Issue in Honor of Ben Shneiderman's 60th Birthday JF - International Journal of Human-Computer Interaction Y1 - 2007 A1 - Plaisant, Catherine A1 - North, Chris KW - human computer interaction VL - 23 UR - http://www.cs.umd.edu/hcil/ben60/ IS - 3 ER -