Kiema, J. B. K., e H.-P. Baehr. “Fusion of Colour Infrared Imagery and Airborne Laser Scanning Data in the Automatic Classification of Urban Environments”. Revista Brasileira De Cartografia, vol. 52, março de 2000, p. 29-36, https://seer.ufu.br/index.php/revistabrasileiracartografia/article/view/52328.