Roberto Polillo Sebastiano Bagnara Heinz-Dieter Böcker Antonio Cantatore Alessandro D'Atri Paolo Paolini European Research in Visual Interfaces: Experiences and Perspectives (Panel). 206-209 1994 Advanced Visual Interfaces http://doi.acm.org/10.1145/192309.192349 db/conf/avi/avi94.html#PolilloBBCDP94