ZHANG, Huihui; LAN, Yubin; LACEY, Ronald E.; HUANG, Yanbo; HOFFMANN, W. Clint; MARTIN, D.; BORA, G. C. Analysis of variograms with various sample sizes from a multispectral image. International Journal of Agricultural and Biological Engineering, Beijing, China, v. 2, n. 4, p. 62–69, 2010. Disponível em: https://www.ijabe.org/index.php/ijabe/article/view/201. Acesso em: 31 jan. 2026.