Kreichauf, S., Wildgruber, A., Krombholz, H., Gibson, L., Vögele, C., Nixon, C., Douthwaite, W., Moore, H., Manios, Y., Summerbell, C., & Project, O. B. O. T. T. (2012). Critical narrative review to identify educational strategies promoting physical activity in preschool. Obesity Reviews, 13(s1), 96-105