Scientists discovered that a little-known group of ancient people, the Denisovans, may predate the Neanderthals at a site important to the story of humankind.
S. Harper, S. Pettitt, and C. Goble. Computers Helping People with Special Needs -- Lecture Notes in Computer Science vol. 3118, page 430--437. Paris, France, 9th International Conference, ICCHP., Springer-Verlag, (July 2004)
A. Garc\'ıa Frey, E. Céret, S. Dupuy-Chessa, and G. Calvary. Proceedings of the 3rd ACM SIGCHI Symposium on Engineering Interactive Computing Systems, page 265--270. New York, NY, USA, ACM, (2011)