Batista, M., Fernandes, A., Ribeiro, L., Alturas, B. & Costa, C. (2020). Tensions between privacy and targeted advertising : Is the general data protection regulation being violated?. In Álvaro Rocha, Bernabé Escobar Peréz, Francisco Garcia Peñalvo, Maria del Mar Miras, Ramiro Gonçalves (Ed.),  2020 15th Iberian Conference on Information Systems and Technologies (CISTI). Sevilla: IEEE.