[1]
P. S. Ritschel and Z. Huamán, “Morphological variability of the sweetpotato germplasm collection of the Embrapa-Centro Nacional de Pesquisa de Hortaliças”, PAB, vol. 37, no. 4, pp. 485–492, Apr. 2002, doi: 10.1590/S1678-3921.pab2002.v37.6365.