J. R. Alvero-Cruz, M. Ronconi, M. Carrillo de Albornoz, J. C. García Romero, D. Rosado Velázquez, and M. de Diego Acosta, “Thyroid hormones response in simulated laboratory sprint duathlon”, J. Hum. Sport Exerc., vol. 6, no. 2, pp. 323–327, Jun. 2011.