[1]
I. F. Gomes, N. E. de M. Beltrão, R. M. M. Freire, and S. J. Galvão, “Comparative sampling methods for foliar diagnose in perennial cotton in Paraíba State, Brazil”, PAB, vol. 17, no. 4, pp. 607–615, Apr. 2014, doi: 10.1590/S1678-3921.pab1982.v17.15765.