Barreto, Gabriel, et al. “Does Caffeine Supplementation Alter Energy Contribution During a Work-Based ~30 Min Cycling Time-Trial?”. Revista Brasileira De Educação Física E Esporte, vol. 34, nº 3, novembro de 2020, p. 471-8, https://doi.org/10.11606/1807-5509202000030471.