Vettorazzi, C. A., R. Angelo Fº, and N. F Koffler. “ Analysis of Areas With Different Slope Classes through TM LANDSAT Images ”. Anais da Escola Superior de Agricultura Luiz de Queiroz 44, no. 2 (January 1, 1987): 1579–1606. Accessed May 22, 2024. https://www.revistas.usp.br/aesalq/article/view/5139.