OLIVEIRA, Andre P; TYLER, Helene R. Measurement and comparison of passing networks in collegiate soccer. Minnesota Journal of Undergraduate Mathematics, [S.l.], v. 1, n. 1, dec. 2015. ISSN 2378-5810. Available at: <https://mjum.math.umn.edu/index.php/mjum/article/view/005>. Date accessed: 24 june 2018.