Psychological theory in an interdisciplinary context: psychological, demographic, health-related, social, and environmental correlates of physical activity in a representative cohort of community-dwelling older adults

Falko F Sniehotta, Paul Gellert, Miles D Witham, Peter T Donnan, Iain K Crombie, Marion ET McMurdo
International Journal of Behavioral Nutrition and Physical Activity 2013, 10:106 (8 September 2013)