HECK, C. J. Concerted Action and the Preemption of State Fair Trade Provisions After Leegin. Columbia Business Law Review, [S. l.], v. 2009, n. 3, 2009. DOI: 10.52214/cblr.v2009i3.13859. Disponível em: https://journals.library.columbia.edu/index.php/CBLR/article/view/13859. Acesso em: 5 dec. 2025.