Simões, M. do S. M. P., N. L. Proença, V. T. Lauria, M. B. do Nascimento, R. da C. Padovani, and V. Z. Dourado. “Smartphone App With Behaviour Change Techniques to Increase Physical Activity: Sequential Multiple Assignment Randomized Trial: Oral Presentation C4.3”. The Health & Fitness Journal of Canada, vol. 14, no. 3, Sept. 2021, doi:10.14288/hfjc.v14i3.666.