D. Santos, F. M. F. Corlett, J. E. M. F. Mendes, and J. S. A. W. Júnior, “Productivity and morphology of pods and seeds of lima bean varieties in Paraíba State, Brazil”, Pesq. Agrop. Bras., vol. 37, no. 10, pp. 1407–1412, Oct. 2002.