TY - JOUR T1 - Designing for fun: how can we design user interfaces to be more fun? JF - Interactions Y1 - 2004 A1 - Shneiderman, Ben VL - 11 SN - 1072-5520 UR - http://doi.acm.org/10.1145/1015530.1015552 CP - 5 M3 - 10.1145/1015530.1015552 ER -