Acuna, Rigoberto Ruiz Dias, Evandro Chartuni Mantovoni, Peter John Martyn, and Serge Bertaux. “Comparison of Traction Coefficient and Traction Efficiency Obtained by the Wismer and Luth (1974) Equation and by Field Trials”. Pesquisa Agropecuaria Brasileira 30, no. 4 (April 1, 1995): 523–530. Accessed November 15, 2025. https://apct.sede.embrapa.br/pab/article/view/4335.