Droste, Annette, et al. “Screening of Brazilian Soybean Genotypes With High Potential for Somatic Embryogenesis and Plant Regeneration”. Pesquisa Agropecuaria Brasileira, vol. 45, no. 7, Jan. 2011, pp. 715-20, doi:10.1590/S1678-3921.pab2010.v45.8169.