<hi xmlns="http://www.tei-c.org/ns/1.0" rend="bold">Houde, Stephanie / Hill, Charles (1997)</hi>: <hi xmlns="http://www.tei-c.org/ns/1.0" rend="italic">“What do prototypes prototype?”</hi> in: <hi xmlns="http://www.tei-c.org/ns/1.0" rend="bold">Helander M. / Landauer, T.K. / Prabhu P. (eds.)</hi>: <hi xmlns="http://www.tei-c.org/ns/1.0" rend="italic">Handbook of human-computer interaction</hi>. Amsterdam: Elsevier, 367-381.