Websites that Satisfy Users: A Theoretical Framework for Web User Interface Design and Evaluation. - Ping Zhang 002; Ruth V. Small; Gisela M. von Dran; Silvia Barcellos (HICSS, 1999)

A Two-Factor Theory for Website Design. - Ping Zhang 002; Gisela M. von Dran; Ruth V. Small; Silvia Barcellos (HICSS, 2000)