Samartini, Carolina Queiroz, et al. “Chromosome Number and Nuclear DNA Content of Species of the Genus Amaranthus (Amaranthaceae)”. Pesquisa Agropecuaria Brasileira, vol. 51, no. 8, Oct. 2016, pp. 998-1001, https://doi.org/10.1590/S1678-3921.pab2016.v51.23232.