Santo, C., J. Torres Guzman, D. Ramírez Ahedo, y J. C. Villarroel Poblete. «Non Primary Standards SIM Force Comparison up to 10 Kn». INNOTEC, n.º 1 ene-dic, abril de 2011, p. 25, http://164.68.127.13/index.php/INNOTEC/article/view/100.