KEIL, H. R. O. e DE ANDRADE, J. B. (2004) “RADIOLOGY & PHOTOGRAMMETRY - Photogrammetric Principles as Applyed in the Periapical Intra-oral Radiology: an evaluation of the accuracy and method reproducibility”, Boletim de Ciências Geodésicas, 10(1). doi: 10.5380/bcg.v10i1.1459.