Siebra, C., 		Correia, W., 		Penha, M., 		Macêdo, J., 		Quintino, J., 		Anjos, M., 		Florentin, F., 		Q. B. Silva, F., & 		L M Santos, A.
2018 Oct 22.  Guidelines for Accessibility: ensuring the usability of mobile applications for visually impaired users. Companion Proceedings of the Brazilian Symposium on Human Factors in Computational Systems (IHC). [Online] :