Rios, A. J. W., Kliemann, H. J., Oliveira, V. Á. de, & Jacomine, P. K. T. (2008). SAMPLING DENSITY AND LANDSCAPE COMPLEXITY IN SOIL SURVEYS CARRIED OUT IN BRAZIL. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], 38(1), 44-52. https://doi.org/10.5216/pat.v38i1.3614