DA FONSECA, C. E. L.; FIGUEIREDO, S. A.; DA SILVA, J. A. Effect of deep of sowing and light intensity on germination of ’mangaba’ (Hancornia speciosa Gom.) seeds. Pesquisa Agropecuaria Brasileira, v. 29, n. 4, p. 653–660, 1 Apr.1994.