Learning object design considerations for small-screen handheld devices.
Health communication and adolescents: what do their emails tell us? Family Practice, 25(4):304{311, 2008
Computers & Education
McPherson A.
Macfarlane A.
Mullany L.
Crawford P.
Brown B
Hedberg J
Human-data interaction
The design and implementation of a competency-based intelligent mobile learning system.