M. B. Fernandes, J. R. de Castro, B. F. de Aquino, V. L. B. Fernandes, J. S. Alves, and F. C. de Góis, “Adaptability of grain sorghum cultivars for saline soils of Rio Grande do Norte state, Brazil”, PAB, vol. 27, no. 2, pp. 217–222, Feb. 1992.