De Bourdeaudhuij I., Teixeira P. J., Cardon G., & Deforche B. (2005). Environmental and psychosocial correlates of physical activity in Portuguese and Belgian adults. Public Health Nutrition, 8:886-895.
De Bourdeaudhuij I., Teixeira P. J., Cardon G., & Deforche B. (2005). Environmental and psychosocial correlates of physical activity in Portuguese and Belgian adults. Public Health Nutrition, 8:886-895.