Hope, C., L. Vickery, A. Wyatt, and S. James. “Mobilising John Cage: The Design and Creation of Score Generators for the Complete John Cage Variations I–VIII”. Malaysian Journal of Music, vol. 2, no. 2, Feb. 2013, pp. 34-45, https://ejournal.upsi.edu.my/index.php/MJM/article/view/667.