The role of self-determination theory in explaining teachers' motivation to continue to use e-learning technology. - Øystein Sørebø; Hallgeir Halvari; Vebjørn Flaata Gulli; Roar Kristiansen (Comput. Educ., 2009)

Self-tracking behaviour in physical activity: a systematic review of drivers and outcomes of fitness tracking. - Daoyan Jin; Hallgeir Halvari; Natalia Maehle; Anja H. Olafsen (Behav. Inf. Technol., 2022)