André G. Afonso, Urban surfaces as expressive and communicative resources for urban digital signage systems: the project Luzes da Praça, Blucher Design Proceedings, Volume 1, 2014, Pages 912-920, ISSN 23186968, http://dx.doi.org/10.5151/designpro-CIDI-88 (www.proceedings.blucher.com.br/article-details/urban-surfaces-as-expressive-and-communicative-resources-for-urban-digital-signage-systems-the-project-luzes-da-praa-8751) Palavras-chave:: ;