Gass, G., Camp, E., Watson, J., Eager, D., Wicks, L., & Ng, A. (1983). Prolonged exercise in highly trained female endurance runners. International journal of sports medicine, 4(4), S. 241-246. doi:10.1055/s-2008-1026042

Gass, G.C., E.M Camp, J. Watson, D. Eager, L. Wicks, and A. Ng. "Prolonged Exercise in Highly Trained Female Endurance Runners." International Journal of Sports Medicine 4, no. 4 (1983): S. 241-246.

Gass, G.C., et al. "Prolonged Exercise in Highly Trained Female Endurance Runners." International Journal of Sports Medicine 4.4 (1983): S. 241-246.