LITVINCHEV, I.; OZUNA, E. L. Approximate Packing Circles in a Rectangular Container: Valid Inequalities and Nesting. Journal of Applied Research and Technology, [S. l.], v. 12, n. 4, 2014. DOI: 10.1016/S1665-6423(14)70088-4. Disponível em: https://jart.icat.unam.mx/index.php/jart/article/view/187. Acesso em: 24 apr. 2024.