Ferrari, J. M. S., Gabriel, C. P. C., Silva, T. B. G., Mota, F. D., Gabriel Filho, L. R. A. and Tanaka, E. M. (2018) “ANALYSIS OF THE SPATIAL VARIABILITY OF RESISTANCE TO SOIL PENETRATION AT DIFFERENT DEPTHS”, Revista Brasileira de Engenharia de Biossistemas. Tup, 12(2), pp. 164–175. doi: 10.18011/bioeng2018v12n2p164-175.