GREEN, A.; COOPOO, Y.; BORMAN, A. Physical activity tracking using mobile devices: Can a heterogeneous sample of smart phones accurately quantify steps?. African Journal for Physical Activity and Health Sciences, [S. l.], v. 24, n. 4, p. 514–524, 2019. DOI: 10.4314/ajpherd.v24i4. Disponível em: https://www.ajol.info/index.php/ajpherd/article/view/181892. Acesso em: 8 oct. 2026.