Carrasco Sosa, S., M. Gaitán González, C. Yáñez Suarez, and R. González Camarena. 1989. “Constant Load Ergometer for Evaluation of Anaerobic Performance”. Revista Mexicana De Ingenieria Biomedica 10 (1):12. https://rmib.com.mx/index.php/rmib/article/view/740.