Macedo, Márcio, Caio S. de B. Almeida, Antonio C. S. Souza, Josildo P. Silva, Antonio L. Apolinário Jr., and Gilson A. Giraldi.
" A Markerless Augmented Reality Environment for Medical Data Visualization." <em>Proceedings of the 14th Medical Informatics Workshop,
Brasília/DF, 2014</em>. SBC, 2014,  
pp.1714-1723.