Paiva, Carlos Manuel, Pedro Nogueira, Gustavo Alves, Arcelina Marques, Pedro Guimarães, and Rubem Couto. “A Flexible Online Apparatus for Projectile Launch Experiments”. International Journal of Online and Biomedical Engineering (iJOE) 9, no. S1 (January 6, 2013): pp. 35–36. Accessed August 11, 2022. https://online-journals.org/index.php/i-joe/article/view/2289.