1. Aaro LE 1991a The cardiovascular intervention program in Oppland County, Norway InSport for All: Proceedings of the World Congress on Sport for All(edited by P. Oja and R. Telama) pp. 194–195 Amsterdam: Elsevier
2. Aaro LE 1991b A campaign for the promotion of physical fitness in Sogn Og Fjordane County, Norway InSport for All: Proceedings of the World Congress on Sport for All(edited by P. Oja and R. Telama) pp. 196–199 Amsterdam: Elsevier
3. Updating the evidence that physical activity is good for health: an epidemiological review 2000–2003
4. Bauman A Crawford D 2003 Physical activity promotion as a public health strategy for obesity prevention InObesity Prevention and Management(edited by R. Andersen) pp. 239–255 Champaign, IL: Human Kinetics