Ketels, M., De Bacquer, D., Geens, T., Janssens, H., Korshøj, M., Holtermann, A., & Clays, E. (2019). Assessing physiological response mechanisms and the role of psychosocial job resources in the physical activity health paradox: Study protocol for the Flemish Employees’ Physical Activity (FEPA) study. BMC Public Health.

Ketels, Margo, Dirk De Bacquer, Tom Geens, Heidi Janssens, Mette Korshøj, Andreas Holtermann, a Els Clays. "Assessing Physiological Response Mechanisms and the Role of Psychosocial Job Resources in the Physical Activity Health Paradox: Study Protocol for the Flemish Employees’ Physical Activity (FEPA) Study." BMC Public Health 2019.

Ketels, Margo, et al. "Assessing Physiological Response Mechanisms and the Role of Psychosocial Job Resources in the Physical Activity Health Paradox: Study Protocol for the Flemish Employees’ Physical Activity (FEPA) Study." BMC Public Health 2019.