J. V. Gonzaga, F. de S. Ramalho, and J. W. dos Santos, “Distribution of Aphis gossypii within cotton plant in solid planting and intercropping”, PAB, vol. 26, no. 11/12, pp. 1839–1844, Oct. 1991, doi: 10.1590/S1678-3921.pab1991.v26.3532.