Hans-Jörg Bullinger Jürgen Ziegler Wilhelm Bauer Intuitive Human-Computer Interaction-Toward a User-Friendly Information Society. 1-23 2002 14 Int. J. Hum. Comput. Interaction 1 http://dx.doi.org/10.1207/S15327590IJHC1401_1 db/journals/ijhci/ijhci14.html#BullingerZB02