How to Make the Citation of this Document using the INPE Standard (BibINPE Format)
MAGALHÃES, M.; MAGALHÃES, S.; ALVIM, M. V. Efficient viewshed computation on external memory DEM terrains. In: BRAZILIAN SYMPOSIUM ON COMPUTER GRAPHICS AND IMAGE PROCESSING, 20. (SIBGRAPI), 2007, Belo Horizonte, MG, Brazil. Proceedings... Porto Alegre: Sociedade Brasileira de Computação, 2007. On-line. IBI: <6qtX3pFwXQZG2LgkFdY/RAdwh>. Available from: <http://urlib.net/ibi/6qtX3pFwXQZG2LgkFdY/RAdwh>.
How to Make the In-Text Citation (by author/year)
... as proposed by Magalhães, Magalhães and Alvim (2007).
... may be found in the literature (MAGALHÃES; MAGALHÃES; ALVIM, 2007).