André Mourão, Pedro Borges, Nuno Correia, João Magalhães. Facial Expression Recognition by Sparse Reconstruction with Robust Features. In Mohamed Kamel, Aurélio J. C. Campilho, editors, Image Analysis and Recognition - 10th International Conference, ICIAR 2013, Póvoa do Varzim, Portugal, June 26-28, 2013. Proceedings. Volume 7950 of Lecture Notes in Computer Science, pages 107-115, Springer, 2013.