Gatica Mandiola, P., and J. Barbany Cairo. “Comparison of Physical Performance in Long Jump and Course Navette, Among 10 to 18 Years Olds in the Region of Maule (Chile) and Catalonia (Spain)”. Revista Ciencias De La Actividad Física UCM, Vol. 3, no. 3, Oct. 2000, pp. 35-43, http://200.9.234.116/index.php/revistacaf/article/view/1037.