Barajas Ramón, Y., Pájaro Olivo, F.E. and Torres Plata, J.M. 2016. Influence of different methodological strategies in the speed and accuracy of the launch of the line in pitchers of 16 to 18 years in the city of Cartagena de Indias. VIREF Revista de Educación Física. 4, 4 (Mar. 2016), 80–95.