Winkelmann, Melissa Alves. “Certification Mark and Collective Mark: A Case Study of the Collective Mark ‘Vinhos Do Brasil’”. The Journal of Intellectual Property – Contemporary Law and Constitution, vol. 3, no. 3, Oct. 2014, pp. 227-48, https://doi.org/10.16928/2316-8080.v7n1p.227-248.