Springer, A. E., Tanguturi, Y., Ranjit, N., Skala, K. A., & Kelder, S. H. (2013). Physical activity during recess in low-income 3rd grade students in Texas.

Springer, Andrew E., Yasas Tanguturi, Nalini Ranjit, Katherine A. Skala, och Steven H. Kelder. Physical Activity During Recess in Low-income 3rd Grade Students in Texas. 2013.

Springer, Andrew E., et al. Physical Activity During Recess in Low-income 3rd Grade Students in Texas. 2013.