Do graphical overviews facilitate or hinder comprehension in hypertext?

Ladislao Salmerón, Thierry Baccino, José J. Cañas, Rafael I. Madrid, Inmaculada Fajardo. Do graphical overviews facilitate or hinder comprehension in hypertext?. Computers & Education, 53(4):1308-1319, 2009. [doi]

Abstract

Abstract is missing.