<hi xmlns="http://www.tei-c.org/ns/1.0" rend="bold">Pisciotta, Henry / Brisson, Roger / Ferrin, Eric / Dooris, Michael / Spink, Amanda</hi> (2001): “Penn State visual image user study”, in: <hi xmlns="http://www.tei-c.org/ns/1.0" rend="italic">D-Lib Magazine</hi> 7(7/8): 169-196.