Buchheim, C., De Santis, M., Palagi, L., & Piacentini, M. (2012). An Exact Algorithm for Quadratic Integer Minimization using Nonconvex Relaxations. Department of Computer and System Sciences Antonio Ruberti Technical Reports, 4(5), 29. Retrieved from https://rosa.uniroma1.it/rosa00/index.php/dis_technical_reports/article/view/10023