1. Pun T, Roth P, Bologna G, Moustakas K, Tzovaras D. Image and video processing for visually handicapped people. Journal on Image and Video Processing 2007: 12.
2. SAEDUP. Serviço de Apoio ao Estudante com Deficiência da Universidade do Porto [online]. 2013. Available from: URL: http://sdi.letras.up.pt/default.aspx?pg=saedup02.ascx&m=11.
3. W3C. Scalable Vector Graphics (SVG) 1.1 (Second Edition) [online]. 2011. Available from: URL: http://www.w3.org/TR/2011/REC-SVG11-20110816/.
4. Carvalho V, Freitas D. Converting SVG Images to Text and Speech. In: Proceedings of the International Conference on Enabling Access for Persons with Visual Impairment: 2015 Feb 12-14; Athens, Greece. Athens: National and Kapodistrian University of Athens; 2015.
5. Ordonez V, Kulkarni G, Berg TL. Im2Text: Describing Images Using 1 Million Captioned Photographs. Advances in Neural Information Processing Systems 2011: 1143-1151.